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heathkit

  1. kcline

    Current Analog Room Setup 45 SET with Arcturus Blue Glass 37-A Tubes

    When I got this amp it came with a 5 pin to octal adapter so a # 76 tube could be used in place of 6J5, I thought at the time that I wish I had some blue Arcturus 76 tubes, those are very hard to find. I have a collection of blue tubes and I remembered that there was a 76 like tube the 37-A...
    • kcline
    • Thread
    • arc dynaco heathkit klisch tubes
    • Replies: 8
    • Forum: Tube Audio
  2. Panpanculcul

    Is this a Monoblock tube amplifier & who made it?

    Just got my hands on this nice piece, came from a collector estate but I do not know nothing about it. Went online but the only one who look's like is the Heathkit W-1 or W-2 or W-3M? I am sure someone knows about it on AudioKarma. Thanks in advance!
    • Panpanculcul
    • Thread
    • acrosound to-300 heathkit monoblock amplifier tube amplifier
    • Replies: 6
    • Forum: Tube Audio
  3. Geoff Miller

    Heathkit AA 1600 plus Sansui AU 717

    Any thoughts on using my AU 717 as a pre amp for Heathkit AA 1600..Yes ? No ? Maybe ?
  4. W

    finished Heathkit W4's

    First a shout out to Dave G. for the stability mods...these actually sound very nice. I do have the WA-P2's but did not wire the octal sockets on the amps. Already enough strain on the power trannys' with 122vac at the wall. The one thing I love about these is the amount of room there is...
  5. angelaudio

    Messing with treble and bass makes ok speakers sound great

    Just a few notches up on bass and one on treble has turned my subpar speakers into very engaging and formidable music reproducing machines! Now tell me...why the hell do audio purists refuse to mess with eq and leave everything flat when just a few eq adjustments can dramatically affect the...
  6. easterro

    Heathkit AR-1515

    [redacted]
  7. vodsonic

    Heathkit C-3 Capacitor checker vs. later models (IT-11, IT-28)

    Does anyone have experience rebuilding and/or using the Heathkit C-3 Condenser (capacitor) Checker? They can be had all day for well under a hundred bucks (much unlike the later IT-11 & IT-28). The leakage test side on the C-3 appears to go up to 450V. Wondering if a rebuilt and calibrated C-3...
    • vodsonic
    • Thread
    • c-3 capacitor checker capacitor tester heathkit
    • Replies: 1
    • Forum: Tube Audio
  8. yoho

    Heathkit AD-1304 Active Audio Processor

    I just acquired a Heathkit AD-1304 from 1970, right now l use it for digital music and COVID produced podcasts and it is very effective. I want it to process my turntable as well without changing the connections. Right now it’s connected to a Sansui 8080 and my Bluetooth adapter is hooked to...
  9. Ibemiked

    HealthKit AS-10’s?

    I’m looking at a pair of Heathkit AS-10’s locally in excellent condition. They have Jensen drivers. The driver placement looks very similar to my AR2’s. Almost identical. We’re these AR2 inspired? Anyone have these are knowledge of these? If so what are your thoughts. Any info would be...
  10. scavenger

    Heathkit AA-1640 Vs. Adcom gfa-555

    I have the adcom. Was thinking about doing some buy and sell to switch to the Heathkit. The adcom is the original Mk I, not Mk II. It's in great shape. Not a scratch. Runs great. Haven't heard the Heathkit yet. It's hooked to some Bose 901's and is fed with a Heathkit AP-1615 preamp for...
  11. kcline

    Changes in local AC Voltage since Virus Stay at Home Orders

    When I use my Analog Room #1 System the normal amp is my pair of Heathkit Williamson W-3AM monoblocks.These are from 1954 and I run those with my Jorgensen Line Voltage Corrector. It can Buck or Boost + or - 12 volts or + or - 24 volts adjustable with the control. I run these at 115 to 117...
  12. G

    LE14 / LE20 Speaker Rebuild Options

    Hi all, I got a hold of a pair of Heathkit AS-48s. They're made from the following JBL components: LE14 woofer LE20 tweeter LX8 crossover The woofers were in great shape other than foam. I re-foamed one and tried it. It did not sound good. Major dead spots in a frequency sweep and poor bass...
    • G Dudds
    • Thread
    • as-48 heathkit jbl le14 le20 lx8
    • Replies: 6
    • Forum: Speakers
  13. MKG

    Heathkit IG-5218 sine-square wave audio signal generator issues

    I bought a Heathkit IG-5218 sine-square wave audio signal generator on eBay. When I opened it up, a number of wires were clipped. Found the assembly manual for an IG-18 and reconnected wires and fired it up. After calibrating it it’s putting out a beautiful sine wave, but it’s having issues...
    • MKG
    • Thread
    • heathkit ig-18 ig-5218 signal generator
    • Replies: 5
    • Forum: Test Equipment
  14. Riki

    ISO Tube Mono Block Kit Ideas for Realstic Super Tweeters

    I have a pair of realistic super tweeters that I use with a pair of Heathkit AS-101 speakers. I was thinking that it would fun to build some small tube mono block kits to power the super tweeters (and it would look cool). From what I could find online the tweeters are 65+ DB/1w/1m. I couldn't...
    • Riki
    • Thread
    • diy power amp heathkit mono block realistic super tweeters tube
    • Replies: 1
    • Forum: Tube Audio
  15. Kasanay

    Heathkit W4-AM Replacement Transformer

    I have a pair of Heathkit W4-AM monoblocks and one has a defective power transformer (in the photo, the amp on the right is fitted up with the incorrect transformer). I found a Hammond (Model 274BX) that looks like it will work as a substitute and I would like some confirmation on that. Do you...
  16. Riki

    Marantz 2230 Power Amp Recomendation (Bi-Amp Project)

    I'm thinking about bi-amping a pair of Heathkit AS-101 speakers. I've really enjoyed listening to them with my 2230. What I envision is using the integrated power amplifier to drive the horns and using the external power amp for the woofers. What would you recommend for a power amp? I'd like...
    • Riki
    • Thread
    • bi amp bi-amping heathkit marantz marantz 2230 valencia
    • Replies: 0
    • Forum: Marantz Audio
  17. dlucy

    Recapping and restoring and upgrading a Heathkit AR-1515 receiver

    One of our outstanding local AK'ers, @nj pheonix , asked me to recap and restore his monster-of-a-receiver Heathkit AR-1515. It is quite a beast, lots of power, an unusual design (on the inside), has the rare Dolby FM card, and was a lot of fun (read as "learning experience") to work on. This...
    • dlucy
    • Thread
    • heathkit heathkit aa-1515 heathkit ar-1515 recap recapping restoration
    • Replies: 200
    • Forum: Solid State
  18. Riki

    Heathkit AS-101: Thrift Store Score!

    I just scored a pair of Heathkit AS-101 speakers from a local thrift store. They are in pretty fair nick and have matching serial numbers. The insides look untouched. The crossovers are wired for a single amp And what is really neat (at least to me) is that each of the...
  19. Photoboy92

    Heathkit AS-101 Rebuild

    Hello just joined the community and want to thank everyone for all the shared info I've gleaned already... Hope I'm posting in the right location for this- and I apologize if I have so many questions as I'm a bit of a newbie I recently acquired a pair of Heathkit AS-101 cabinets that were...
    • Photoboy92
    • Thread
    • 808-8a altec lansing h-811b heathkit jbl rebuild
    • Replies: 2
    • Forum: Speakers
  20. Brice

    Little fun with the Heathkit UA-1

    Hi guys, Quick post regarding the rebuild of a pair of Heathkit UA-1. I hope it will give you some ideas for restoring other vintage gear. I received those little guys half dead like this but all Xformers tested good: So I went for a full rebuild. First I've got nice cans from...
  21. J

    Sunn Concert Bass Amp - Troubleshoot and Repair

    It's not often I work on transistorized amplifiers, however a couple of times a year I take on such a project. This Sunn concert, built around 1973 was owned by the same person since around that time and was looking for electronic repairs with no cosmetic work. I decided to take on the task...
    • JRUBIN
    • Thread
    • bass concert heathkit repair sunn
    • Replies: 0
    • Forum: Solid State
  22. Grady Shades

    Heathkit SS-1B any information on these would be appreciated

    I just got two of these speakers and got home with them. I took the back off and everything looks original to my untrained eye. There’s a possibility of getting the SS-1 that they were intended to go with I’m just waiting now to hear. I have seen a little about them around after some research...
  23. zim bida

    Heathkit AA-20 preamplifier (I think?)

    Hi All, I picked up a lot of heathkit gear recently and amongst the two mono preamps and heathkit w-4am and AA-40 was a stereo preamp, however all identifying information was wiped clean from the faceplate. I've gone through old threads and looks at many many pictures on google - I think it is...
  24. L

    Heathkit AR-27 in KEFkit walnut veneer cabinet - advice please!

    My new favourite purchase by Lamo posted Nov 4, 2018 at 6:36 AM Hi folks, I've found this forum purposely as I seek advice. I went to a house clearance sale and purchased a gorgeous looking cabinet with an fm radio inside. I bought it simply because I can't bear the thought of lovely old...
    • Lamo
    • Thread
    • 1969 fm heathkit kefkit restore speakers vintage
    • Replies: 4
    • Forum: Solid State
  25. G

    Heathkit A-6A Tubes

    Can someone help me? I have a Heathkit A-6A (trying to get working). I have a schematic but It doesn't indicate WHAT the back center position tube is supposed to be. (The front center position is a 6 SN7). Would the back be another 6 SN7? Somebody threw a 5Y3 tube in that position but it keeps...
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