UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Timbucus · 15th Mar 2021, 8:56 pm

Yes indeed the 8.5v is to reduce the strain on the 5v rail. Mine is running on a 9V transformer (as you say the real one is 'rare') and I have a bit bigger heatsink on the LM323, it seems to cope quite well but does make a nice handwarmer - the diodes on the Bridge circuit get quite toasty as well, as does the dropper resistor for the zener!

15th Mar 2021, 8:56 pm	#36
Timbucus Octode Join Date: Mar 2019 Location: Barry, Vale of Glamorgan, Wales, UK. Posts: 1,363	Re: The Transam Triton Personal Computer Yes indeed the 8.5v is to reduce the strain on the 5v rail. Mine is running on a 9V transformer (as you say the real one is 'rare') and I have a bit bigger heatsink on the LM323, it seems to cope quite well but does make a nice handwarmer - the diodes on the Bridge circuit get quite toasty as well, as does the dropper resistor for the zener!