Closed Acorn Electron ULA

Hi all!

Does anyone have a spare working Electron ULA kicking around?

My Electron works pretty well but won't load anything with any consistency. I've reworked the op-amp circuit and still no-go. I can only think it's the ULA now: I reckon I need a new, working one.

So, answers on a post-card folks!!

Chris...

Hi,
From my experience, check the ULA socket itself. They are quite prone to fail. I replaced mine and the system worked flawlessly with old ULA.
The socket is hard to find, though.

rgrocha said:

Hi,
From my experience, check the ULA socket itself. They are quite prone to fail. I replaced mine and the system worked flawlessly with old ULA.
The socket is hard to find, though.

Click to expand...

Yeah that that my first thought, but all pins are OK and the ULA has been carefully cleaned with a fibreglass pencil. I don't have another elk to test it on sadly.