Hi guys,
I have a CA-35 Beard Pre-amp that i want to recap and upgrade all caps to higher grade like Mundorf Evo or Supreme. I also plan to upgrade all of ECC81/82/83 to Tele nos tubes ( 1960s). Would it be wise to do so ?
I tried to find the preamp schematic online but could not find any detailed schematic at all. Most of them are just general schematic without notation of capacitor specs ( fara /voltage). Most of capacitors inside the pre were washed out that i can barely see their specs.
Would it be possible for anyone here to help me out? Really appreciate!
I have a CA-35 Beard Pre-amp that i want to recap and upgrade all caps to higher grade like Mundorf Evo or Supreme. I also plan to upgrade all of ECC81/82/83 to Tele nos tubes ( 1960s). Would it be wise to do so ?
I tried to find the preamp schematic online but could not find any detailed schematic at all. Most of them are just general schematic without notation of capacitor specs ( fara /voltage). Most of capacitors inside the pre were washed out that i can barely see their specs.
Would it be possible for anyone here to help me out? Really appreciate!
If nobody has the schematic, why not trace it out yourself? Valve data including pinouts on Franks site, always your friend.
https://frank.pocnet.net/
It's about an hour's work probably with the preamp off and unplugged for 15 minutes at least. Just need to be patient. A multimeter will give you the resistor values. A capacitance/inductance meter should give you the cap values. Sometimes you need to unsolder one end of a part, but without doing that you should come close. You'll learn a lot.
https://frank.pocnet.net/
It's about an hour's work probably with the preamp off and unplugged for 15 minutes at least. Just need to be patient. A multimeter will give you the resistor values. A capacitance/inductance meter should give you the cap values. Sometimes you need to unsolder one end of a part, but without doing that you should come close. You'll learn a lot.
Thank you @andyjevans ! Such a great idea. Since i have had most of the stuff ( fluke multimeter, oscilloscope etc) I would probably do that. The downside is I do touring alot ( im a live audio engineer) so that would take awhile. I was hoping that there might be a good schematic around so i can jump in straight away while im still free at home.