[sdiy-market] [FS] Trevor Page TR9090 TR909 clone PCBs and ROMs (UK but will ship)

Steve Lenham steve at bendentech.co.uk
Sun Apr 16 22:05:20 CEST 2023


Hi,

An exciting change of priorities leaves me with many items looking for 
new homes :-)

On offer here are the two PCBs, pre-programmed PIC and three EPROMs 
(i.e. all the "custom" parts) for building Trevor Page's TR9090 drum 
machine. This was one of the first TR909 clones and, I believe, 
replicates the circuitry faithfully but omits the sequencer. Most of the 
other parts are standard unless you are particularly finicky about the 
VCA, in which case there are a couple of specific transistors to hunt down.

I thought it was a brilliant idea to build one of these and then 
conspicuously failed to do so. All I managed to achieve was to fit and 
beautifully solder the 100K resistors - you can do better than that!

I have all the latest documentation available to pass on.

Asking GBP50 plus postage at cost to wherever you are. Payment by bank 
transfer or Wise preferred - can also take PayPal but with a surcharge 
to cover their ridiculous fees.

If you really want a head start then I think I also have some of the 
bulk components (TL072s, transistors) required - please ask.

Thanks for looking. Happy to answer any questions. More to come!

Cheers,

Steve L.
Benden Technology
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