1. the EL84-EM84-300B Interstage-Coupled Amplifier Adventure

    Well, it seems like an age since I got started on this, and finally a set of Transformers arrived today, to join the forlorn pile of valve bases, a rusty variac and a decrepit old oscilloscope. In terms of mass/weight I now have around 90% of the amplifier parts. However I need to order all the capacitors and resistors to go with it.

    The plan is to build one channel only to get things working, and build it on a pine board before working out the best layout and where to source ...

    Updated 28th May 2010 at 21:31 by cartridgemangler

    DIY Electronics