Modifying The Powertran Transcendent 2000
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- čas přidán 24. 08. 2024
- This video describes a minor modification you can make to the gain staging of the instrument to overcome the imbalance in the VCO signal vs. the rather overpowering filter oscillation. Special thanks to Tony Allgood for input and guidance with this modification. Thanks for watching!
Tim Orr made lovely designs
He sure did. I wonder what he is doing now, and if he knows people are still pouring over his schematics? I learned a lot working on this synth.
Oakley stuff is fantastic.
It really is. A buddy of mine here has a 3030 prototype, I might do a video on it some time in the future!
Do you have the mods documented somewhere ? A pdf download would be super useful 👍🏻
A PDF of the illustrations in this video you mean? I'll put that on my 'to-do list'...
@@telefunkian details of the mods you’ve done to upgrade, set out in a pdf would be useful to folks I think.
Btw. Tried everything to try and contact you, look me up ?
@@8-bitbitsa821 there is only one modification to the 68K resistor R129 to 15K. The other mods suggested at the beginning recommended by Tony were not undertaken.
Changing R129 gets to the root of the issue but more care will be needed to set VCO level.
@@guywilkinson Thanks Guy, I’ve done that mod on one of my T2000s. Seems to work okay, I’ll get the other one working one day.
@@8-bitbitsa821 I did the mod today and liked it, although it's a bit overpowering than the noise source now. I really can't see a use for the self oscillation on the filter......but.....if I want weird.... it's there 🤣
As for square wave, it's not a great square wave. I'd really like it to be sharper, the 748 ic13 and 741 ic14 do not have great bandwidth when used in that configuration especially ic14, maybe I should experiment 🤔