I'd highly recommend using a 3mm copper plate instead.
[edit: ha, ha, ignore you've moved on way beyond the original idea.
Did you look at the power supply, it was mentioned earlier in the thread that they are a bit thin? Good luck!]
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@Protegimus ,I made it from scratch, so I'm pretty pleased with it.Power supply is OK, it's the caps that flounder. They are 35v,but I measured the voltages and they do lag behind a bit if you have it switched to the higher rail voltages, so I use either 50v or 63's and that seems to do the trick
@poundy I have been following your thread for a while, and I'm learning a great deal from it, thank you for sharing!
I have a 3020 that's been in the family since new, about 1982/3
I recently bought a 3020A for 300ZAR (±£13) no cover, no base and very dirty. I am in the process of getting it back to a working condition and upgrade, hence the interest in your post. At this point I am stuck, needing an RCA MJ2955
Anyway, do you want to share the list of caps that you replaced? Will really help me if I get this one sorted.
Regards,
John
I have a 3020 that's been in the family since new, about 1982/3
I recently bought a 3020A for 300ZAR (±£13) no cover, no base and very dirty. I am in the process of getting it back to a working condition and upgrade, hence the interest in your post. At this point I am stuck, needing an RCA MJ2955
Anyway, do you want to share the list of caps that you replaced? Will really help me if I get this one sorted.
Regards,
John
@inphase01 ,i did a full recap of the electrolitics, replacing some with film caps. I do have some original RCA(H) MJ's but it looks like you are a long way away.You realy need matching pairs. If when fitting these so you may be batter off changing all 4 and get matched sets. I always fit emitter resistors to the H's as well. What is the serial number of you amp?
I know just replacing all the caps makes a significant improvement. I had a client that did that (and then took it intoi compare at hifi shops, a real sleeper).
I am watching, i have a 7020 from the late 70s that could benefit from this kind of treatment. And there is a lot more roomin the 7020.
dave
I am watching, i have a 7020 from the late 70s that could benefit from this kind of treatment. And there is a lot more roomin the 7020.
dave
I am really keen to take the RCA's off you if you want to sell them. I have family in the UK and my brother-in-law will be visiting there next week for 3 weeks. Maybe we can make a plan? The serial No. is B3224084
This looks really very neat! I can see that you take great pride in your work, well done. Definitely going to steal some ideas
Buy the way, what happened to the MM/MC connection?