capacitor
-
Yamaha CR-2040 Shorted During DC/Bias/Voltage Adjustment
Well, I'm pretty new to this and probably have no business digging into the likes of a CR-2040, but this is what I've found to pass the time and I'm enjoying every second of it. I picked this CR-2040 up for $200 knowing it was cosmetically great aside from being dirty and there was no sound out... -
JBL C40 Harkness N1200 Crossover Recapping
Greetings: I have an early model JBL C40 Harkess with the D130A, 175DLH, and N1200 Crossover. I would like to change the capacitors in the N1200 as they have to be about 60 years old now (or older). I opened up the N1200 and am faced with this wax/resin substance securing the caps to the inside...- cykotic
- Thread
- c40 capacitor caps crossover harkness jbl n1200 recap resin
- Replies: 14
- Forum: The Lansing Legacy
-
A
Does anyone recognize this odd sound?
I recently plugged in a vintage power amp and preamp. I got close to the right speaker I can hear the noise that you'll hear in the video that I posted the link to. It's a very quiet distortion/hiss sound. After swapping through cables switching speakers around, I figure that the culprit must be...- AndrewCAudiophile
- Thread
- capacitor db systems fix frequency help hiss noise power amp preamp ps audio
- Replies: 40
- Forum: General Audio Discussion
-
CA610 II Protection Relay Slooooooooow
Hey All, Looking at a CA610 II Amp for a friend as they said it's taking longer and longer to "turn on" as they use it. I've looked into it a bit and have noticed the protection relay does take about 2-3 minutes to activate with the power on, then the amp operates normally. Once warm, if I... -
Yamaha NS-344 Speakers The Definitive Thread (Maybe)
After benefiting from the work of others for years, I've finally decided to give back to the community. I recently purchased a set of vintage Yamaha NS-344 speakers off eBay. They're in really good condition but I noticed when listening that the right midrange speaker wasn't producing much...- SonicTemple
- Thread
- capacitor crossover inductor layout ns-344 ns344 repair schematic yamaha
- Replies: 7
- Forum: Speakers
-
Acoustic Research AR-4X capacitor replacement
Picked up a pair of AR-4Xs and am trying to replace the old capacitors with new 20 µF Dayton Audio caps. I'm referencing this photo (from this guide) for wiring but the insides of my speakers don't quite look the same (pic attached). I assume the big beige block is the capacitor. Can I just clip... -
Help with capacitors.
Hello. I found some of this caps in a store wich used to sell old electric/electronic parts (some of them new) and these capacitors caught my attention Do you know something about them? they are 2.2uf 250v MKT axial, the logo is like .. a horn? a nautillus??... well, here is it: thank you... -
Fisher 105
I refoamed a pair, with otherwise nice cabinets, but I get a "buzz" on one of them. Is that an issue with a capacitor?- Blues Duke
- Thread
- buzzing capacitor fisher re-foaming
- Replies: 3
- Forum: Speakers
-
Y
Troubleshooting a quiet tweeter
Hey all! So glad I found this forum as I am at my wits end! I have an old NAD 3020 & a set of TDL Nucleus 1 speakers that have been in storage for a few years since moving home. I just managed to finally get my hands on them & after repairing a small tear in one of the mid drivers (using a... -
Oh no, Looks like my H/K CD-401 getting sick
With green sickness. I was at first surprise with weird recording levels, then I was not able to bias any tape... And now I know why.... Well sooner or later this will happen to any old gear. Looks like I have to stash up some caps. So far I discovered that many of the shown capacitors are... -
S
Did I burn this power supply?
I have just took the capacitors out of this power supply, and I'm a bit worried about those brown-ish spots that formed around the connections, do these look like I burned the board? and if so, anyway to "fix" it? I have read that burning things is unlikely if you're careful because not many...- sabalennon
- Thread
- burning capacitor desoldering power supply power supply board receiver soldering soldering iron vintage
- Replies: 7
- Forum: Solid State
-
Marantz 1200B
Hi to all. I'm in the process to rebuilt a Marantz 1200B and I receive a lot of brand new old parts. I need to replace the capacitors on the amp boards, but I need to know where is the positive and the negative side of this capacitor. Someone can help me. Like you can see, the + sign is in the...- SJoannette
- Thread
- capacitor marantz 1200b
- Replies: 5
- Forum: Marantz Audio
-
X
Looking to recap and convert posts on these old Motorola speakers. Seeking advice and knowledge
I picked up a pair of ~60s Motorola speakers with a recent TT buy. I have no idea the quality as searching comes up nearly empty. I figured I'd take the opportunity to do my first recap. I am a little confused about what I need, as there is only a single capacitor, but it's ratings are 33 MFD... -
Advent 5012 crossover issue
I am having an issue with my Advent 5012/W's (1983 era - no tweeter switch) after a crossover change. The old 7uF electrolytic in the tweeter was replaced with Jantzen Audio 0.22uF 1200V Z-Superior and Dayton Audio 6.8uF 250V polypropylene caps. The old 32uF electrolytic in the woofer was... -
T
AU-5900 parts search and general repair questions
Hello, I've found some great info here as usual, but was hoping for some specific help with my au-5900. Based on another thread, I was attempting to replace the 2SA798 transistor pairs on the F2596 board with some ksa992s I happened to have from working on my 6060. In the process I clipped a...- tweedsmith
- Thread
- au-5900 capacitor repair help
- Replies: 4
- Forum: Exclusively Sansui
-
MA-5100 Serial Numbers Starting With AA
I have an MA-5100 with serial number AA1542. I finally found something that even mentions serial numbers starting with AA, and it looks like the serial numbers are as follows: 10H01 - 99H99 & AA1001 - AA1561 Is anyone aware of any significance with the changeover to AA? And is the service...- BeCool
- Thread
- capacitor ma-5100 recap serial number
- Replies: 3
- Forum: McIntosh Audio
-
Kenwood KP-5022F
Hello everyone! I have a KP-5022F quad TT. It's making a popping sound when the muting switch is activated/deactivated. Is there a cap that needs replacing on these that would fix this? I've noticed on some other threads that Dual TT have the same issue and a cap replacement could be the remedy...- goodshelac
- Thread
- capacitor direct drive kenwood muting switch turntable
- Replies: 6
- Forum: Kenwood-Trio/Kensonic-Accuphase
-
Tantalums in the signal path?
I have a new-to-me Luxman 1030 with all original components that works well and sounds good so far. While looking at the circuitry to evaluate if there were any clear components that had to be changed (leaky capacitors, darkened resistors, blackened transistors, etc.), I found the two only...- Sergimm
- Thread
- capacitor luxman luxman 1030 tantalum
- Replies: 36
- Forum: Solid State
-
A
AKAI GX-210D first power on in 13 years = unlucky burning smell.
Hi, from power on after all that time things seemed to be going well until loading a new tape resulted in a mechanical stuttering sound (motor?) followed by electronics burning smell. I switched off before anything went bang and will get to inspect closer in coming days. From my reading and... -
J
BOSE 601 Series ii crossover (only one Resistor and Capacitor in Xover )
hello Bose enthusiasts, Anyone who rebuilt the Xover could indicate if this makes sense to them ? Perhaps the Xover were modified, i have no way to know but am strating to suspect they might have been. But maybe not, might be a leaner version of the network. Eager to hear from anyone who has... -
S
Replacing two 37 year old filter caps; where do I start?
Please excuse my ignorance, I'm new to the world of recapping vintage receivers. I have an original Pioneer SX-50 that's getting up there in age, and I'd like to start by replacing the main filter caps for good measure. They're a pair of Nichicon 8200uf 50v caps with an 85c rating. What would be... -
Replacing bipolar "simulation" with single cap
Is this an instance of a "simulated" bipolar capacitor in a Luxman L5? They are both connected by the negative side, but what makes me doubt is the central cable, and how that behaves in the circuit. Can I substitute these 1uF/50V caps with a single film 0.5uF/100V cap?- Sergimm
- Thread
- bipolar capacitor
- Replies: 2
- Forum: Solid State
-
D
Could it be caps need replaced?
Have a Simply 2 integrated amplifier ( 12AU7 preamp tubes, EL34 power tubes). Amp is self biasing. Had been in storage a couple of years. Weak audio from the right channel so I replaced tubes- new issue Tung-Sol EL34s, NOS Tung-Sol black glass 12AU7s. Right audio is still weak (sound stage 3/4...- Dclay1
- Thread
- capacitor tube amp
- Replies: 8
- Forum: Tube Audio
-
Hard to find replacement capacitor
Hi, I am planning to recap a Denon PMA 560, and the two big filter capacitors are 12000uF/56V. Due to the layout and them both being really close together, the replacement capacitor must have a diameter of 30mm. Maximum length should be around 70mm. The only capacitor I've been able to find is... -
Yamaha Schematic Symbols
Yamaha has not posted a key on the schematic. Trying to understand what the symbols may mean. Notice the caps that have a circle adjacent to them, what does this circle represent? I do understand that the "J" represents 5%.- Yamaha5000
- Thread
- capacitor schematics yamaha
- Replies: 3
- Forum: Yamaha
