Opening controls wherever possible is the very best way to restore them. It allows you to clean the track gently with a cotton bud and iso and also clean and if needed re-tension the wiper. If the wiper can be moved a fraction so that it contacts fresh unworn track then that is even better.
That looks like a pot with a fourth pin? used for the loudness circuit. Those are pretty much unobtainable I think.
That looks like a pot with a fourth pin? used for the loudness circuit. Those are pretty much unobtainable I think.
Thats why i always keep all parts, strip them down and clean them. I have quite a few spares for various units, lots of pots and switchesOpening controls wherever possible is the very best way to restore them. It allows you to clean the track gently with a cotton bud and iso and also clean and if needed re-tension the wiper. If the wiper can be moved a fraction so that it contacts fresh unworn track then that is even better.
That looks like a pot with a fourth pin? used for the loudness circuit. Those are pretty much unobtainable I think.
Not only are the parts scarce, or more non existent, it keeps the originality when doing a repair
Its one, but not the only reason i repair the Nads, there were so many amps and recievers that had interchangeble parts
for example i brought 3 realy trashed old 4020a tuners, realy cheap,i think £20 for all 3.
Nobody realy wants these any more, they all want DAB, but if your smart, like me 😉 you will notice all the switches, knobs and more importantly the button heads for the switches, are identical to the 3020 series 20, A var and B var amps, and people want £10 each on ebay for those button heads
These always come loose and pop off, and often get lost.
so for £20 i got 5 switches and 5 button heads 😉, clean them all up, and almost good as new, ready to replace a defective one.
the creek 5050 is my next project.
Comes with its own beer! Nice. What did the inductor do, act as the pickup?
Today, while building an amp, I found out that one half of the secondary was open on the main transformer. I had a spare - just have no idea how it happened! It's a used one but still.
It's a Hammond 278CX and if you want it, come get it. The 6V winding is fine, and centre tap to one side of primary works.
It's a Hammond 278CX and if you want it, come get it. The 6V winding is fine, and centre tap to one side of primary works.
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So upon further inspection, there was a break in the wire and there's actually nothing wrong with it. That's a nice 185$ savings if I needed to replace one.
Yes. I used to have a similar sniffer except that my pickup was uh, a pickup. I used a single coil guitar pickup from an old Hagstrom guitar for my sniffer back in the 80's. At that time the worst offenders were any electronic device containing an SCR or Triac, including my Carver M-400 "Magnetic Field Power Amplifier." Anyone who ever used one knows the meaning of tick, tick, tick, tick...
Yes, a 47mH inductor acts as pickup. It takes a lot of gain, so I had to switch to the heavy overdrive channel and turn volume to 10 (11 not available here🤢)
Not so much a repair, but I added a switch and a pair of relays to my 6550 amp to make it triode UL switchable.
I also modified my 6P45S to use a 150V VR instead of 105V so the voltage ramps up slower on the bias module.
I also modified my 6P45S to use a 150V VR instead of 105V so the voltage ramps up slower on the bias module.
Quite disappointed by the more recent albums though. Up to Black Celebration & Music For the Masses are my favourites.
One could establish a business of replacement volume controls for the Pioneer receivers of my youth...excepting that most have gone to the boneyard. And as observed, the 4 legged variety are nowhere to be found -- but can be replaced with some ingenuity and an Arduino.
Eliminated an oscillation in my 6550 amp by adding 1k in series with the gNFB loop. I also put a 1000pf -> 1k zobel from plate to UL tap to reign in HF crap.
My Hammond 1650N transformers are from 2008 and 2012 respectively, and they are NOT identical. One had more phase shift cause an HF oscillation that the above fixed.
My Hammond 1650N transformers are from 2008 and 2012 respectively, and they are NOT identical. One had more phase shift cause an HF oscillation that the above fixed.
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A lot of groups have good first and maybe second albums.
I think they tend to run out of ideas later on. There are exceptions though.
I fixed an old Electrohome 6BQ5 amp by replacing the coupling caps. Their bakelite housing had visible cracks on all 4, just clipped 'em out without bothering to check value or leakage. Original value is 0.047u - any recommendations off ebay (cheap) for replacements? All I had was 0.22, 250V line X caps - it made the amp work, but I'd like to go with the original value.
Ebay is iffy, keep an eye out, or add it to your next order when you buy a decent value from a good source.
Just the caps would be expensive to get, shipping and so on will be more than the parts cost.
Just the caps would be expensive to get, shipping and so on will be more than the parts cost.
Sure, but DM have a lot more than just two. They actually have an interesting story. The band was originally founded by Vince Clarke and he was the composer of the majority of the first album. He left right after this, and Martin Gore took over the main songwriting duties, with Alan Wilder doing some songs here and there. More recently, Dave Gahan has also contributed some songwriting but he has a solo career too.
For the longest time ever, there seemed to be some beef between Clarke and Gore, but a few years ago they made an instrumental album under the moniker VCMG. Gore also releases solo albums.
Wilder left many years ago, had his own gig with Recoil, auctioned off all his collection of DM gear and more. So nowadays, there are a few people around the world who have the actual samples used on DM albums on their Emulator samplers.
Computer speaker fell down, magnet and cone damage.
Shop charged 20 Rupees, less than 30 cents, to recone and fix magnet.
2.5" 4 ohm speaker.
Will check it later.
Cabinet is cheap plastic, thinking of making a sound bar using the two speakers, power supply, and the TDA2822 chip amp board.
Shop charged 20 Rupees, less than 30 cents, to recone and fix magnet.
2.5" 4 ohm speaker.
Will check it later.
Cabinet is cheap plastic, thinking of making a sound bar using the two speakers, power supply, and the TDA2822 chip amp board.