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Hi,
I am considering replacing the old capacitors in my DSS-9 speaker networks. I am handy with soldering but need help identifying and ordering correct replacement parts. Each speaker has two networks. The parts list from the service manual is:
All Parts (Both Networks in a speaker)...
Hi, last year I started restoring the old SA-8100 which belonged to my mother. I changed all the e-caps (including the ltwo large ones 10 mF 50V, half of the diodes, half of the transistors and the relay. The unit works quite well and the improvement has been noticeable, but there are still some...
Got a nice 250TX to fix for a friend.
Right channel has both outputs shorted E-C.
Otherwise it looks good, nice case, clean inside, decent FM reception, all the functions work.
I read in another post here that a decent replacement output for PNP: KSA1220A-Y, NPN: KSC2690A-Y.
That said, there...
Dynaco stereo120a Restoration
I have had this unit for many years. The last time it was in service was about 15 years ago. As far as I can remember, it was working well. I did not test the unit before I began working because I was worried about causing damage by powering up before some...
MC2105 restore to former glory / parts list
I finally decided to restore my beloved MC2105. I am a hobbyist, not an engineer so my thoughts on circuit theory are to be taken with a grain of salt. That being said: I do have some insights that may help people that don’t do this work every day...
Hey everyone!
Working on a Marantz 2215B for a friend. It's in really rough shape. Power amp has a couple of blow output transistors, and the tuner section loads the power supply. Couldn't find an exact culprit in the tuner section, but I've come across at least one leaky diode. All the caps...
A few days ago I picked up an SA-8500 that my neighbor left on the curb. Other than the fact that it's missing one of its feet it's in okay cosmetic shape. It does have some corrosion on the rear contacts, pre/main jumpers, etc., presumably from being stored in a damp basement or something, but...
EDIT NOT QUITE SOLVED: Issue with all three pots & pot adjustments but came back aaaagggghhhh :no:
EDIT2: Was the diodes!!!
This wasn't holding speed so I cleaned the pots and put in all new electrolytic caps & transistors, and it still won't hold speed. But now, it pulses fairly aggressively...
In the past here on AK I've asked about possible substitutions for this Hitachi 24V reed relay .
Although there were a couple of what I am sure were good suggestions, there was nothing easily get-able for me until I saw this today.
Well it seem some good chap here in Japan who goes by the...
Performed a recap and basic restoration on a small Kenwood integrated amp KA-4002 and it sounds great. The KA-4002 has a cap-coupled output, so it has a warm sound kinda like tube gear and very much so the "1970's vintage sound".
All electrolytic caps and "noisy" small signal transistors...
I recently picked up a Pioneer A-80 on the cheap. It had a non-working channel with bad outputs and other various issues in that channel. After quite a bit of troubleshooting it's in running condition and received a full recap. Seeing as there's not much info on this receiver I figured I could...
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...