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The meter that i have is fairly precise with larger caps. So ill hope and assume its ok for smaller ones. I dunno.🤔 Let me ask though if I may. I m pretty sure my meter will test for leaky DC voltages in circuit. This is how I do it. Please let me know if I'm doing it wrong.👍 an example as...

Jrb32 is rarely on here now.

Ty! Hey, off topic but as I was lifting and measuring components, that 10 or 20 pf cap in parallel with the 3.3 meg , mine read 30 pf. Now the schematic is kinda misleading with Simul Class. It says to put 20pf with later SC's. Mine has 10pf markings on it. Last time I talked with Mike B. ...

wood butcher , I'm shot gunning parts of my amps circuitry and why are .02uf's 715 's 400v so hard to find!?? Youd think mouser would have everything I need! Jeesh! Any other shops that you can point me to? I need some ceramics as well. Ty for your time! Jim

Dang, ty. That link was hiding in plain site!!!

Ty for the reply. When I remove them, do I need a specific meter to test for resistance?

Ty for the advice e WB!! In my DRG C+, I was measuring for any leaky Orange drops. When I got to the PI circuit, both plates measured app. 320vdc. On the other side of the .1's there was app. 60vdc. That surprised me till I realized there was bias voltage present from bias in. If you don't...

Ty Jay! Funny, I was JUST reading those older threads of Jrb32 and BoogieBabies and Wood Butcher about the under sides of those boards. They were also talking about tantalum caps as to what type and even if they should be used. Ty! I'll pm you my friend! Keep up the good work! Blessings, Jim.

Greetings Ed. I read and heard that all orange drops are " polarized " even though they aren't marked. And that the foiled end should be connected to the lowest impedance side or from the last audio output stage. How can I tell and how important is this in my C+? Hope to hear from you...

Hey Jon, greetings! Hey, my 2.2 uf 35v on V3B cathode in my C+ is a black Sprague . should I upgrade it to a yellow bullet or a T110? Thanks? Jim

You have a great handle on this brother! With my 2:90, that green masking didnt help my issues with what caused the damage. I'm curious Jay, with all due respect, how are you gonna etch the underlying traces? Did you ever see one? For what its worth, if you ever need some advice as to what...

I can't wait to see finished board. And yes I did. But I deleted it. I looked at a different angle and you didnt. That one image of the eq card, twas just the reflection off of the shiny .1 . With my eq card, what would happen if I replaced R33 with a 1 meg? Mine has the 470k. I'm always...

You mean that you don't have the under traces laid out yet? And, did you figure a way to make it thru hole? Blessings, Jim.

Dang! Pretty cool! Looks familiar!!

Congrats on that .1 coup!ing cap! This doesn't apply to your repair but Someone told me a while back that after a recap, you should also replace those coupling caps as well. Anyway, I purchased a pair of Sovtec 6l6's . got em from the tube store a long time ago. Long story short. I recently tube...

Ty BB!! I just recapped my 1984 factory DRG C+ couple years ago. My plate voltages are 500+vdc a lot of times. My wall voltage is around 122V. What do you think happened? Ty!!! Jim

Thanks Jay. I was referring to R33 as the extra 1 Meg. Mine has a 1Meg ,R34,as shown in diagram. And a 470k for R33. Just wondered why you did it. You did it cause your IIB has it? I looked at the schematic. Yours has the two mini toggles on each end .Nice!! . The MK IV schematic didnt have it (...

Thanks for the reply. Ok, ill leave the tantalum be.Yes, I checked all of my voltages. There is a few volts on every cathode in preamp circuit. And every Orange drop is blocking DC. And that canned air, That's that stuff ppl buy to blow off dust and whatever from usually computers. Let me tell...

Man, I'm sitting here admiring your work!👌 Impeccable! I need to ask, why did you put another 1M R to ground? I've looked at many EQ cards. I can't see that extra Meg anywhere. That or I'm blind as heck! lol. I'm like a sponge wanting to learn. Aaand, which transistor is backwards? 🤗...

Ty. Man, I would loooove to rebuild my preamp!! I need all new preamp sockets too. Jay, a tech on YT claims that tantalum caps love to fail in Mesa's. My 1984 C+ has some on the preamp board. How do I know if they fail? I lifted a leg on a few and they measured within specs. Thoughts? About that...