• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Harman Kardon HK 330B recap, restore and upgrade BOM part list (kinda)

dlucy

dlucy

dlucy67 (Doug)
Staff member
Moderator
Subscriber
Thanks very much to the kind folks here on AK for helping me work through a recap/rest-o-mod on a pretty little HK 330B. I've finished the unit, tested it for weeks now, and I'm happy enough to publish the BOM that worked.

Note: the thread you're reading now, its BOM and photos only cover one of the several HK 330B variants. Please check with several other threads and identify the 330B variant you have before using this particular BOM for ordering parts.


Update: lots of info on the 330B and it's immediate relatives here: https://www.audiokarma.org/forums/i...a-330-330a-330b-b-1-330b-b-2-and-330c.960045/

There are two lists below:
  1. a recap-only list for those of you who only want to replace the definitely-gonna-blow-due-to-age electrolytic caps
  2. an addition to the recap list for those of you who want to replace the other parts that wear and fail, the parts who may be ageing and contribution to noise or poor audio quality, and the parts that are more precise and cheap that would yield better (e.g. the phono RIAA curve) sound
The below lists are broken up by board, too.

Please comment all you like as I'm sure there will be better choices and corrections over time. I'll post the below lists in a second posting with better formatting to copy-and-paste into a BOM tool on sites like Mouser.com.

Thanks again to all who helped! My HK 330B sounds awesome, is louder with less distortion, and should last another 30 years!
 
Last edited:
Register to hide this ad
Section 1 - Recap-only BOM for HK 330B

Control Amp board
C501 Capacitor Electrolytic 1 uF 25 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C502 Capacitor Electrolytic 1 uF 25 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C503 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C504 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C505 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 100 VDC 647-UKL2A010KDD
C506 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 100 VDC 647-UKL2A010KDD
C507 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C508 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C519 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UKL1V221KPD
C520 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UKL1V221KPD
C521 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C522 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C523 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C524 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA

Main amp board
C401 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C402 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C403 Capacitor Electrolytic 220 uF 6.3 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
C404 Capacitor Electrolytic 220 uF 6.3 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
C405 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
C406 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
C407 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C408 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C409 Capacitor Electrolytic 47 uF 50 VDC replaced with Electrolytic 47 uF 63 VDC 647-UPW1J470MPD
C410 Capacitor Electrolytic 47 uF 50 VDC replaced with Electrolytic 47 uF 63 VDC 647-UPW1J470MPD
C417 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 100 VDC 647-UPW2A010MDD
C418 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 100 VDC 647-UPW2A010MDD
C419 Capacitor Electrolytic 1000 uF 35 VDC replaced with Electrolytic 1000 uF 50 VDC 647-UKL1H102KHD*
C420 Capacitor Electrolytic 1000 uF 35 VDC replaced with Electrolytic 1000 uF 50 VDC 647-UKL1H102KHD*
* The larger 2200 uF caps in this output stage seems to overemphasize bass response, so I've backed the capacitance down to just 1000 uF, the same as factory spec

RIAA phono EQ board
C701 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C702 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C707 Capacitor Electrolytic 33 uF 10 VDC replaced with Electrolytic 33 uF 35 VDC 647-UKL1V330KEDANATD
C708 Capacitor Electrolytic 33 uF 10 VDC replaced with Electrolytic 33 uF 35 VDC 647-UKL1V330KEDANATD
C709 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C710 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C717 Capacitor Electrolytic 100 uF 16 VDC replaced with Electrolytic 100 uF 35 VDC 647-UPW1V101MPD1TD
C711 Capacitor Tantalum 0.33 uF 10 VDC replaced with Film 0.33 uF 250 VDC 667-ECW-F2334JAQ
C712 Capacitor Tantalum 0.33 uF 10 VDC replaced with Film 0.33 uF 250 VDC 667-ECW-F2334JAQ

Rectifier SAB board
C1 Capacitor Electrolytic 1000 uF 35 VDC replaced with Electrolytic 1800 uF 50 VDC 647-UPW1H182MHD
C2 Capacitor Electrolytic 2200 uF 35 VDC replaced with Electrolytic 2700 uF 50 VDC 647-UHE1H272MHD

Rectifier Main board
C4 Capacitor Electrolytic 1000 uF 35 VDC replaced with Electrolytic 1800 uF 50 VDC 647-UPW1H182MHD
C5 Capacitor Electrolytic 1000 uF 35 VDC replaced with Electrolytic 1800 uF 50 VDC 647-UPW1H182MHD
C6 Capacitor Electrolytic 2200 uF 63 VDC replaced with Electrolytic 4700 uF 80 VDC 647-LKG1K472MESCBK

AM Tuner board
C257 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UKL1V100MDDANA
C268 Capacitor Electrolytic 220 uF 6.3 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
C269 Capacitor Tantalum 0.1 uF 10 VDC replaced with Stacked Film 0.1 uF 63 VDC 505-MKS02.1/63/10
C272 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UKL1V221KPD

FM Tuner board
C218 Capacitor Electrolytic 10 uF 16 VDC replaced with Electrolytic 10 uF 35 VDC 647-UPW1V100MDD
C219 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6

FM MPX board
C301 Capacitor Electrolytic 0.47 uF 50 VDC replaced with Electrolytic 0.47 uF 50 VDC 647-UKL1HR47KDDANA
C302 Capacitor Electrolytic 0.47 uF 50 VDC replaced with Electrolytic 0.47 uF 50 VDC 647-UKL1H010KDDANA
C313 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C314 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C315 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C316 Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 50 VDC 647-UKL1H010KDDANA
C325 Capacitor Electrolytic 220 uF 16 VDC replaced with Electrolytic 220 uF 35 VDC 647-UPW1V221MPD6
- Capacitor Electrolytic 1 uF 50 VDC replaced with Electrolytic 1 uF 100 VDC 647-UPW2A010MDD
 
Last edited:
Section 2 - Restore/Refurbish/Upgrade for HK330B

Control Amp board
Q501 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q502 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q503 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q504 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q505 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q506 Transistor - 2SC458 - replaced with Transistor KSC1845F - 512-KSC1845FTA

Main Amp board
Q401 Transistor Pre-driver 2SC1335-D - replaced with Transistor KSC3503D - 512-KSC3503DS
Q402 Transistor Pre-driver 2SC1335-D - replaced with Transistor KSC3503D - 512-KSC3503DS
Q403 Transistor Driver 2SC1345-D - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q404 Transistor Driver 2SC1345-D - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q405 Transistor Biass 2SC458-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q406 Transistor Biass 2SC458-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q407 Transistor Complement 2SC1509(Q) - replaced with Transistor KSC2690A - 512-KSC2690AYS
Q408 Transistor Complement 2SC1509(Q) - replaced with Transistor KSC2690A - 512-KSC2690AYS
Q409 Transistor Complement 2SA777(Q) - replaced with Transistor KSA1220A - 512-KSA1220AYS
Q410 Transistor Complement 2SA777(Q) - replaced with Transistor KSA1220A - 512-KSA1220AYS
Q411 Transistor Output 2SC1107 - replaced with Transistor MJE15030G - 863-MJE15030G
Q412 Transistor Output 2SC1107 - replaced with Transistor MJE15030G - 863-MJE15030G
Q413 Transistor Output 2SC1107 - replaced with Transistor MJE15030G - 863-MJE15030G
Q414 Transistor Output 2SC1107 - replaced with Transistor MJE15030G - 863-MJE15030G
R431 Resistor - 0.47 R 2W replaced with Metal Oxide 0.47 R 3 W 283-0.47-RC
R432 Resistor - 0.47 R 2W replaced with Metal Oxide 0.47 R 3 W 283-0.47-RC
R433 Resistor - 0.47 R 2W replaced with Metal Oxide 0.47 R 3 W 283-0.47-RC
R434 Resistor - 0.47 R 2W replaced with Metal Oxide 0.47 R 3 W 283-0.47-RC
R435 Resistor - 10 R - replaced with Metal Film 10 R 3 W 71-CPF310R000FKEE6
R436 Resistor - 10 R - replaced with Metal Film 10 R 3 W 71-CPF310R000FKEE6
VR401 Resistor Trimpot 100K - replaced with trimpot 100K 0.5 W 652-3309W-1-104
VR402 Resistor Trimpot 100K - replaced with trimpot 100K 0.5 W 652-3309W-1-104
VR403 Resistor Trimpot 3K - replaced with trimpot 5K 0.5 W 652-3309W-1-502
VR404 Resistor Trimpot 3K - replaced with trimpot 5K 0.5 W 652-3309W-1-502
C411 Capacitor Ceramic 220 pF - replaced with MLCC 220 pF 100 VDC 810-FG28C0G2A221JNT6
C412 Capacitor Ceramic 220 pF - replaced with MLCC 220 pF 100 VDC 810-FG28C0G2A221JNT6
C413 Capacitor Ceramic 0.02 uF - replaced with MLCC 0.022 uF 100 VDC 810-FK20C0G2A223J
C414 Capacitor Ceramic 0.02 uF - replaced with MLCC 0.022 uF 100 VDC 810-FK20C0G2A223J
C415 Capacitor Film 0.22 uF - replaced with Film 0.22 uF 450 VDC 667-ECW-FD2W224KQ
C416 Capacitor Film 0.22 uF - replaced with Film 0.22 uF 450 VDC 667-ECW-FD2W224KQ

RIAA phono EQ board
Q701 Transistor BJT 2SC458LG-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q702 Transistor BJT 2SC458LG-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q703 Transistor BJT 2SC458LG-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
Q704 Transistor BJT 2SC458LG-C - replaced with Transistor KSC1845F - 512-KSC1845FTA
R701 Resistor Metal Film 47K 0.25 W replaced with Metal Film 47K 0.25 W 71-RN60D4702FTR
R702 Resistor Metal Film 47K 0.25 W replaced with Metal Film 47K 0.25 W 71-RN60D4702FTR
R703 Resistor Metal Film 1K 0.25 W replaced with Metal Film 1K 0.25 W 71-RN60D-F-1.0K
R704 Resistor Metal Film 1K 0.25 W replaced with Metal Film 1K 0.25 W 71-RN60D-F-1.0K
R705 Resistor Metal Film 1M 0.25 W replaced with Metal Film 1M 0.25 W 71-RN60D-F-1M
R706 Resistor Metal Film 1M 0.25 W replaced with Metal Film 1M 0.25 W 71-RN60D-F-1M
R707 Resistor Metal Film 1M 0.25 W replaced with Metal Film 1M 0.25 W 71-RN60D-F-1M
R708 Resistor Metal Film 1M 0.25 W replaced with Metal Film 1M 0.25 W 71-RN60D-F-1M
R709 Resistor Metal Film 560 R 0.25 W replaced with Metal Film 560 R 0.25 W 71-RN60D5600F
R710 Resistor Metal Film 560 R 0.25 W replaced with Metal Film 560 R 0.25 W 71-RN60D5600F
R711 Resistor Metal Film 22K 0.25 W replaced with Metal Film 22K 0.25 W 71-RN60D2202FTR
R712 Resistor Metal Film 22K 0.25 W replaced with Metal Film 22K 0.25 W 71-RN60D2202FTR
R713 Resistor Metal Film 3.3K 0.25 W replaced with Metal Film 3.3K 0.25 W 71-RN60D3301F
R714 Resistor Metal Film 3.3K 0.25 W replaced with Metal Film 3.3K 0.25 W 71-RN60D3301F
R715 Resistor Metal Film 10K 0.25 W replaced with Metal Film 10K 0.25 W 71-RN60D-F-10K
R716 Resistor Metal Film 10K 0.25 W replaced with Metal Film 10K 0.25 W 71-RN60D-F-10K
R717 Resistor Metal Film 330K 0.25 W replaced with Metal Film 330K 0.25 W 71-RN60D-F-330K
R718 Resistor Metal Film 330K 0.25 W replaced with Metal Film 330K 0.25 W 71-RN60D-F-330K
R719 Resistor Metal Film 22K 0.25 W replaced with Metal Film 22K 0.25 W 71-RN60D2202FTR
R720 Resistor Metal Film 22K 0.25 W replaced with Metal Film 22K 0.25 W 71-RN60D2202FTR
R721 Resistor Metal Film 22K 0.25 W replaced with Metal Film 22K 0.25 W 71-RN60D2202FTR
C703 Capacitor Ceramic 51 pF - replaced with MLCC 51 pF 200 VDC 80-C320C510J2G
C704 Capacitor Ceramic 51 pF - replaced with MLCC 51 pF 200 VDC 80-C320C510J2G
C705 Capacitor Ceramic 100 pF - replaced with MLCC 100 pF 100 VDC 810-FK28C0G2A101J
C706 Capacitor Ceramic 100 pF - replaced with MLCC 100 pF 100 VDC 810-FK28C0G2A101J
C713 Capacitor Ceramic 0.012 uF - replaced with Film 0.012 uF 250 VDC 667-ECQ-E2123JB
C714 Capacitor Ceramic 0.012 uF - replaced with Film 0.012 uF 250 VDC 667-ECQ-E2123JB
C715 Capacitor Ceramic 0.0033 pF - replaced with MLCC 3300 pF 100 VDC 810-FK24C0G2A332J
C716 Capacitor Ceramic 0.0033 pF - replaced with MLCC 3300 pF 100 VDC 810-FK24C0G2A332J

Rectifier SAB board
D1 Diode Zener EQA01-30 30 V replaced with Zener 30 V 30 mA 78-1N4751A
R1 Resistor - 3.9 K 0.250 W replaced with Metal Film 3.9K 1 W 71-CMF203K9000GKR6
R2 Resistor - 1 K 0.500 W replaced with Metal Film 1K 1 W 71-CPF11K0000FKEE6

Rectifier Main board
D2 Diode Zener EQA01-13 13 V replaced with Zener 13 V 39 mA 78-1N4743A
D3 Diode Rectifier VO3(E ) - replaced with Rectifier 400 V 3 A 625-UF5404-E3
D4 Diode Rectifier VO3(E ) - replaced with Rectifier 400 V 3 A 625-UF5404-E3
D5 Diode Rectifier VO3(E ) - replaced with Rectifier 400 V 3 A 625-UF5404-E3
D6 Diode Rectifier VO3(E ) - replaced with Rectifier 400 V 3 A 625-UF5404-E3
Q1 Transistor - 2SC1212A - replaced with Transistor KSC2690A - 512-KSC2690AYS
R3 Resistor - 100 R 2 W replaced with Metal Film 100 R 3 W 71-CPF3100R00FKE14
R4 Resistor - 2.2K 0.5 W replaced with Metal Film 2.2K 1 W 71-CPF12.2K2%T1
R5 Resistor - 2.2 M 0.5 W replaced with Metal Film 2.2 M 1 W 71-RN70D2204F
C3 Capacitor Ceramic 0.02 uF 150 VAC replaced with MLCC 0.022 uF 630 VDC 810-FG26X7R2J223KNT6
 
HK 330B recap-only BOM copy-and-paste list

C501 647-UKL1H010KDDANA
C502 647-UKL1H010KDDANA
C503 647-UKL1H010KDDANA
C504 647-UKL1H010KDDANA
C505 647-UKL2A010KDD
C506 647-UKL2A010KDD
C507 647-UKL1V100MDDANA
C508 647-UKL1V100MDDANA
C519 647-UKL1V221KPD
C520 647-UKL1V221KPD
C521 647-UKL1H010KDDANA
C522 647-UKL1H010KDDANA
C523 647-UKL1V100MDDANA
C524 647-UKL1V100MDDANA
C401 647-UKL1V100MDDANA
C402 647-UKL1V100MDDANA
C403 647-UPW1V221MPD6
C404 647-UPW1V221MPD6
C405 647-UPW1V221MPD6
C406 647-UPW1V221MPD6
C407 647-UKL1V100MDDANA
C408 647-UKL1V100MDDANA
C409 647-UPW1J470MPD
C410 647-UPW1J470MPD
C417 647-UPW2A010MDD
C418 647-UPW2A010MDD
C419 647-UKL1H102KHD
C420 647-UKL1H102KHD
C701 647-UKL1V100MDDANA
C702 647-UKL1V100MDDANA
C707 647-UKL1V330KEDANATD
C708 647-UKL1V330KEDANATD
C709 647-UKL1V100MDDANA
C710 647-UKL1V100MDDANA
C717 647-UPW1V101MPD1TD
C711 667-ECW-F2334JAQ
C712 667-ECW-F2334JAQ
C1 647-UPW1H182MHD
C2 647-UHE1H272MHD
C4 647-UPW1H182MHD
C5 647-UPW1H182MHD
C6 647-LKG1K472MESCBK
C257 647-UKL1V100MDDANA
C268 647-UPW1V221MPD6
C269 505-MKS02.1/63/10
C272 647-UKL1V221KPD
C218 647-UPW1V100MDD
C219 647-UPW1V221MPD6
C301 647-UKL1HR47KDDANA
C302 647-UKL1H010KDDANA
C313 647-UKL1H010KDDANA
C314 647-UKL1H010KDDANA
C315 647-UKL1H010KDDANA
C316 647-UKL1H010KDDANA
C325 647-UPW1V221MPD6
C??? 647-UPW2A010MDD
 
Last edited:
HK 330B restore-refurbish-upgrade additional BOM copy-and-paste list

Q501 512-KSC1845FTA
Q502 512-KSC1845FTA
Q503 512-KSC1845FTA
Q504 512-KSC1845FTA
Q505 512-KSC1845FTA
Q506 512-KSC1845FTA
Q401 512-KSC3503DS
Q402 512-KSC3503DS
Q403 512-KSC1845FTA
Q404 512-KSC1845FTA
Q405 512-KSC1845FTA
Q406 512-KSC1845FTA
Q407 512-KSC2690AYS
Q408 512-KSC2690AYS
Q409 512-KSA1220AYS
Q410 512-KSA1220AYS
Q411 863-MJE15030G
Q412 863-MJE15030G
Q413 863-MJE15030G
Q414 863-MJE15030G
R431 283-0.47-RC
R432 283-0.47-RC
R433 283-0.47-RC
R434 283-0.47-RC
R435 71-CPF310R000FKEE6
R436 71-CPF310R000FKEE6
VR401 652-3309W-1-104
VR402 652-3309W-1-104
VR403 652-3309W-1-502
VR404 652-3309W-1-502
C411 810-FG28C0G2A221JNT6
C412 810-FG28C0G2A221JNT6
C413 810-FK20C0G2A223J
C414 810-FK20C0G2A223J
C415 667-ECW-FD2W224KQ
C416 667-ECW-FD2W224KQ
Q701 512-KSC1845FTA
Q702 512-KSC1845FTA
Q703 512-KSC1845FTA
Q704 512-KSC1845FTA
R701 71-RN60D4702FTR
R702 71-RN60D4702FTR
R703 71-RN60D-F-1.0K
R704 71-RN60D-F-1.0K
R705 71-RN60D-F-1M
R706 71-RN60D-F-1M
R707 71-RN60D-F-1M
R708 71-RN60D-F-1M
R709 71-RN60D5600F
R710 71-RN60D5600F
R711 71-RN60D2202FTR
R712 71-RN60D2202FTR
R713 71-RN60D3301F
R714 71-RN60D3301F
R715 71-RN60D-F-10K
R716 71-RN60D-F-10K
R717 71-RN60D-F-330K
R718 71-RN60D-F-330K
R719 71-RN60D2202FTR
R720 71-RN60D2202FTR
R721 71-RN60D2202FTR
C703 80-C320C510J2G
C704 80-C320C510J2G
C705 810-FK28C0G2A101J
C706 810-FK28C0G2A101J
C713 667-ECQ-E2123JB
C714 667-ECQ-E2123JB
C715 810-FK24C0G2A332J
C716 810-FK24C0G2A332J
D1 78-1N4751A
R1 71-CMF203K9000GKR6
R2 71-CPF11K0000FKEE6
D2 78-1N4743A
D3 625-UF5404-E3
D4 625-UF5404-E3
D5 625-UF5404-E3
D6 625-UF5404-E3
Q1 512-KSC2690AYS
R3 71-CPF3100R00FKE14
R4 71-CPF12.2K2%T1
R5 71-RN70D2204F
C3 810-FG26X7R2J223KNT6
 
I forgot to say anything about the lamps. There are two kinds of lamps in the HK330B: tuning dial illumination bulbs and function indicator bulbs.

The tuning dial bulbs are fuse-style 8V 0.3A incandescent types. I replaced these with fuse-style LED modules from eBay. They look and work great.

TUNING-DIAL-LAMPS-IMG_7026.png IMG_7035.JPG

The function indicator bulbs are grain-of-rice style. I replaced the one burnt-out one with a CEC 715 5V 0.15A T-1 shape bulb and it is way too bright. That made sense since the supply is 8V or thereabouts, but the other bulb I tried was the CEC 7219 12V 0.72A T-1 shape and it was too dim. So, I've ordered two different replacements from Mouser and I'm waiting on delivery to try them out.

LAMPS INDICATOR IMG_6636.JPG LAMPS INDICATOR IMG_7021.JPG LAMPS INDICATOR IMG_7023.JPG

There wasn't room in the bezel and on the function indicator lamp board for simple LED upgrade, so I'll just stick with the incandescent bulbs this time.

One note about removing the lamp frames: there is a spring that you'll have to move. It attached to the frame, goes through a hole in the faceplate and keeps tension on the tuning indicator hand's lower string. I almost forgot to photo this before disassembly, so here's the photo of the spring and the lower string of the tuning hand that it keeps taut to save my butt next time when I forget:

TUNING-DIAL-SPRING-IMG_7022.png FACEPLATE-REMOVAL-08-IMG_7108.png
 
Last edited:
Ah ha, there it is. You labeled all the boards on the top of the unit and I didn't see the PS. There it is hiding on the bottom of the unit.
 
Blue Shadow said:
Ah ha, there it is. You labeled all the boards on the top of the unit and I didn't see the PS. There it is hiding on the bottom of the unit.
Click to expand...
Good catch. I've made one for the bottom and added it to that post. Thanks!
 
Wow! Great job. How much time did that take for the full restoration? I have two of these, both aging gracefully. I'll have to decide later what I want to put into them. Right now, if I was to pick one unit to do the full job on, it would be my Yamaha CR-420, but the 330B is not far behind.
 
That's hard to say, just how much time is in the recap work itself, since I was cleaning and researching and testing along the way. Maybe 6 hours, total, if I had all the parts in front of me and all the tools. But I'm just a hobbyist, not a seasoned porofessional.
 
Outstanding documentation on your hobby rebuild. I too am trying my first one on a HK Citation 19 I just bought two weeks ago. I only replaced the big 10000uF 75V Mallory's with TDK 10000uF 100V @ $66 CDN ea, ouchy!

I just finally tried it with two sets of speakers and it sounds great. I just cannot get the sound my brother had with his Citation 12 using these Celestion 23i speakers, it might have been the Technics or the 17S he had in with it.

I am using my DACMagic100 and Yamaha CX600U pre and my Bose 301 Series V and Infinity SM 105's (tied/parallel) so 4 ohm load and it runs cool at a pretty high volume.

dlucy - what gear do you need to have to do your rebuild for test equipment?

I have a 25W and now a 40W pen solder iron
Oscilloscope 100MHz (need to learn how to use this)
Tools of course
DMM

I am reading on how to test transistors, diodes, inductors etc...

I read somewhere that people use a signal generator to put a signal in if something is 'dead'.?!

But excellent documentation for sure...right now I cannot seem to be able to put up photos anymore of my progress...
 
The control amp board got stripped of all its electrolytic caps, upgraded to Nichicon higher-voltage, sometimes higher-capacitance caps, and the six noisy 2SC458 transistors were replaced with KSC1845F transistors.

The before, during (to show the obscured-by-components silkscreened numbers) and after photos:

CONTROL-AMP-AND-MAIN-AMP-IMG_4035.png CONTROL-AMP-IMG_4024.png CONTROL-AMP-IMG_6748.png CONTROL-AMP-IMG_6961.png
 
dlucy said:
The control amp board got stripped of all its electrolytic caps, upgraded to Nichicon higher-voltage, sometimes higher-capacitance caps, and the six noisy 2SC458 transistors were replaced with KSC1845F transistors.

The before, during (to show the obscured-by-components silkscreened numbers) and after photos:

View attachment 811187 View attachment 811188 View attachment 811189 View attachment 811190
Click to expand...
Nice, what is a noisy transistor? Does that mean the circuit it is in causes a hum? New to the electronics but willing to learn!

I will try to get that brand too then when I attempt an upgrade. I noticed both Mouser Canada and DigiKey Canada get their stuff or order from the USA anyway, as I was going to send back the small caps from an order I made a mistake in (wrong physical size, but right rating)!

Again, great pics keep them coming I like seeing all the goodies on the boards...glad they do not charge big bucks for the smaller caps and such, I forked over $67 ea for 4 big caps TDK brand but I am okay with that as they are rated to last for 20,000 hours!
 
dlucy I forgot to ask, what size of solder wire do you use for the boards, I ordered some through Amazon.ca but it takes 5 weeks from China and I think I got 0.05mm or is that 0.005mm and lead free is better right 60/40?

I know rosin core is for electronics and the acid is for welding? Just read that not long ago, good thing, they had a huge roll of the acid stuff on sale at Lowe's! My boards would disappear!

I do not know if I can put this up but also to ask about that glue people use to keep the caps from moving...not sure if a person needs to do that anymore?

Thanks again!:thumbsup:
 
ghostberry said:
Nice, what is a noisy transistor? Does that mean the circuit it is in causes a hum?
Click to expand...

After reading a lot of restoring vintage audio gear threads here on AK, I've learned there are numerous, popular transistors that were used in these units which often degraede in performance over several decades. These old transistors now introduce clicks or pops or hum or static into the signal they are handling. The result is annoying artifacts in your sound or just less-than-expected fidelity.

Many people on AK have mentioned this, lots of people have contributed advice like "you should replace that noisy old 2SC458 with a modern KSC1845F" in various threads, and there is a recent thread that collects this information in one place for ready reference. I got jealous of all the well-made Pioneer SX series receiver recap lists where these were mentioned the most and created a new thread so people working on non-Pioneer gear might find some help as they recap or repair or restore other gear.

http://www.audiokarma.org/forums/in...ilure-prone-whatever-and-replacements.731653/

If you find other advice on replacing old transistors like this due to age-related failure, please post it in that thread.
 
ghostberry said:
what size of solder wire do you use for the boards
Click to expand...

Before I answer, just remember that I'm a hobbyist. I barely know what I'm doing. I could be using the wrong stuff. That being said, the solder I'm using is labeled:

www.aimsolder.com
Made in Canada
SN 60 PB 40
Diameter: .032"
FLUX: RA 3%

ghostberry said:
I got 0.05mm or is that 0.005mm and lead free is better right 60/40?
Click to expand...

I'm using Lead-based solder. It is 60% tin and 40% lead (I believe) and it has a rosin core. This is from its datasheet:

Rosin Activated Cored Wire Solder
Features: - High Activity Level - Fully Activated Flux - Improved Wetting Properties - Good Thermal Transfer - Glycol-Free *Meets QQS-571-E Specification and Applicable IPC-J-STD-004 and -006 Requirements
Description: RA is a fully activated, general-purpose wire solder for use in applications where mildly activated fluxes are too weak. RA cored wire is strong enough for excellent tarnish and oxide removal, and will produce bright shiny solder joints. RA wire will leave slight to moderate post process residues that may be left on noncritical applications, but should be removed from any critical applications. RA cored wire meets Mil-Spec cleanliness requirements post-cleaning. IPC flux classification for this material is ROM1.
Availability: - RA is standard with a 3.0% flux core for tin-lead (2.0% flux core for lead-free) alloys. - RA is available in Sn/Pb, Sn/Ag/Cu, SN100C® alloys. - Standard spool sizes: ½ lb. for .010 and .015 diameters; 1 lb. for .020, .032, .040, .050, and .062 diameters. - Packaging of ½ lb. and 1 lb. spools is standard in 12 lb. and 24 lb. cases. - Other flux percentages, alloys, diameters and spool sizes may be available upon special request.
Application: - Solder iron tip temperature should be between 340°C-400°C (650°F-750°F) for Sn63, Sn62 and Sn60 alloys, 370°C- 425°C (700°F-800°F) for Sn/Ag and Sn/Ag/Cu alloys and 340°C-370°C (650°F-700°F) for Sn43/Pb43/Bi14. - Hold the solder iron at a 45° to 60° angle to the work surface. - The solder iron should contact both the component lead and PCB pad surface. - Solder and flux should flow onto both the lead and pad or lead and barrel to promote optimum flux activity to the joint being worked. - If additional flux is needed, the use of AIM’s RA301 flux is recommended. Operators should use an applicator capable of dispensing precise amounts of flux to eliminate over-saturation and excessive spread.​

ghostberry said:
I know rosin core is for electronics and the acid is for welding?
Click to expand...

Yes, rosin core is for electronics (and maybe other uses) and I think you're correct about only using acid core for plumbing or welding.

I actually add a very, very tiny drop of rosin flux to the component lead where it touches the copper pad just before I solder. I use RA type Rosin Flux 835-100ML from MG Chemicals and a micro-oiler applicator bottle to deliver the tiny droplets.

ghostberry said:
about that glue people use to keep the caps from moving...not sure if a person needs to do that anymore?
Click to expand...

I can't remember anyone mentioning addind glue to the caps they are replacing, but you should definitely do a search here on AK to answer that question.
 
dlucy said:
After reading a lot of restoring vintage audio gear threads here on AK, I've learned there are numerous, popular transistors that were used in these units which often degraede in performance over several decades. These old transistors now introduce clicks or pops or hum or static into the signal they are handling. The result is annoying artifacts in your sound or just less-than-expected fidelity.

Many people on AK have mentioned this, lots of people have contributed advice like "you should replace that noisy old 2SC458 with a modern KSC1845F" in various threads, and there is a recent thread that collects this information in one place for ready reference. I got jealous of all the well-made Pioneer SX series receiver recap lists where these were mentioned the most and created a new thread so people working on non-Pioneer gear might find some help as they recap or repair or restore other gear.

http://www.audiokarma.org/forums/in...ilure-prone-whatever-and-replacements.731653/

If you find other advice on replacing old transistors like this due to age-related failure, please post it in that thread.
Click to expand...
dlucy that is great and thank you for this heads up.

So, the area you want me to post is the link you provided above so you can compile more? It would be neat to know which ones are the originals and ones that looked replaced. I am so new to electronics that this will be a bit of a learning curve to notice anything.

But, from what I have read and do know about the Citation 12 and 19 is that there is a "draining pop" I am guessing from a cap so a small noticeable small 'pop' when I turn the power off the Citation 19. The left then the right about a second later does a very small 'thunk/pop' sound. But, my brothers Citation 12 made a pop when it turned on and activated the speakers, my Citation 19 does not only when powering down.

I am using cheap crappy RCA cables to tie in my Polk Sub and using Marr Connectors (for electrical) to bind two set of speakers in parallel until I find the right place to read on getting good speakers...right now people say KEF Q300's...due to having to use two set to make a full sound (Bose 301 V's and Inifinity SM105's monitor speakers - both sound awesome together).

I looked at the link and like the fact you took more time and made a nice chart I am printing this out if I can get permission from you the author of course!:)
 
You must log in or register to reply here.
Back
Top Bottom