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I can hear the motor running on my MH turntable and there is scorching on the motor shaft. I am the original owner and didn't play it to death ,I have other TT's. The motor is still playing at the right speed . Does the motor shaft scorching indicate that the oil impregnated bushing has dry out...

I'm still looking for the SM or schematics for the dbx BX2 (Audio Dynamics B-200) and the dbx CX1. I'm going to have to recap these without them as I'm not getting any younger . There doesn't seem to be any DC offset adjust on the BX2 ,just the idle current ?

I've been getting a lot of PLN's from Digi-key. This hobby seems to have changed quick in fast 18 or so years I've been in it.

Is there rule of thumb for how much back-and-forth movement of the capstan shaft. I'm working on Teac A 4300 (R2R). Thanks

Is there any real difference between these? Are they phasing MJ21195G type out?

I looked around but didn't find anything here. Someone here must have measured the power output of a full WOA mod PL400 . My setup is McIntosh C33 (recapped), WOA PL400 , McIntosh XR16 (recapped). Thanks

How critical is to used the factory values on the trim pots for DC offset and idle current ? Like subbing a 2k for the original 2.2k on bias and a 1k for the 680 on DC offset . I have recapped some Mitsubishi DA A10DC amps and would like to put in so sealed trimpots. Mouser an Digi Key have...

I started to recap my pma-850 and noticed it has the ETC-281 board . This board is connected to the crosstalk control pots on the rear of the unit. The SM I have does not show this board . So there 2 versions of the 850 ? Excluding the 850II. I can't find any paperwork for the ETC-281 board ...

Do these diode get "leaky" ? On a restored SX 980 one diode will bring the idle current to 6mV but other diode it will go down to 20mV. Its the diode I swap them around. I can set the bias and it appears to hold when testing .I wondering if the diode is on verge of failing . No replies at AK ...

I'm looking for Pioner part ACV-105 volume control. It can also be found in the SX 525, SX 828, SX 727, SX 6000, maybe more. Have any rough donor units? Buy or trade , thanks

I'm back using my WOPL400 with McIntosh C33 and McIntosh XR16 ,B&O 4002.( All recapped etc..) There all getting along just fine(sounds great) . I can't warm up to LEDs on the 400 though, I may go back to the incandescent board.

Happy New Phoenix Audio . I have a Sony STR 6065 that I recapped for a friend . There are two common connection paths on schematic , one goes to chassis through the phono ground jack . The other path which includes the negative speaker terminals and negative center channel out jack goes to the...

I'm working on nak 481 . New belts and tire and recapped (e-caps and orange film). The deck plays fine but is not recording correctly . I did record with it before the recap but I didn't playback the recorded tape , I just went by the meters and didn't use all 3 tape types . So I'm...

I finally made back to Phoenix (ACF that is ) . I finished the 4000 ,caps, inputs jacks , soldering , soldering , deoxit you know. I've been using it with the WOA PL400 and a pair McIntosh XL16 (recapped) speakers . Sounds great , I really like the phono . I did play with the 4000's bells and...

I have the VU LED kit in my WOPL400 . I need to get rid of the shadow bar across the VU face . Cause of the shadow ? LED postions ? The VU face in light path ? I was going to try to reflect the light back at the LEDs with some mirrored foil inside the top of the VU . Any suggestions ?

I'm starting to recap this 4000 and I noticed the joystick doesn't easily move. I didn't want to force it . Is fadder lube the best this control . I have some other with silicone additive . Please advise , thanks

I'm looking into the possibilities of making a power transformer for my model 18 . I have the original E & l laminates . There are no AC voltages on 18 schematic but I'm told I can use the the ones on the model 19 . The primary on the 18 was two coils in parallel , I was going to use 1 . Its...

I have a HK citation A preamp that is all orignal and it works. I am looking to recapp it . So in preperation I'm looking at the HK branded germanium transistors. Is there anyway to tell what type the transistor was used ? The only info I could find is the schematic ,which only has EBC voltages...

I have two of these amps that I am recapping . One channel on one of the amps is giving me trouble . At first it had real high DC offset(-300ma) then it appear to be oscillating as I had high AC on the speaker terminals . Now it shorts out one or two of the TIP36C output transistors . There is...

Hello all, I installed the white oak control board, LED board (needs tweaking ) new PS caps,protection relay kit, and bridge rectifier and output transistors in my PL 400 . Is there a "fix" for the sluggish meters ? I'm using the amp with a pair of Snell CV and a McIntosh C33. The room its in is...