I'm using the last AllynMay Hiwatt chassis (of two) that I bought years ago to build a DR103 right now.
Going to use it as a bass amp for the bass player in my new band project----- He's using my '75 Ampeg V4B head now thru a 1x15/4x10 stack.
The Ampeg works well but I don't have any back up tubes for some of the oddball ones it uses.
So I'm building my last DR103 clone using Heyboer Hiwatt Partridge clone iron from Mojotone, a turret board set I got from Watts many years ago, and an ex-Reeves head cab I got off the 'bay years ago. I'll put my own logo on it.
A friend "borrowed" another DR103 clone I built @15 years ago to use for bass for his Grindcore band and recording studio (he left me an early Mesa Dual Rec 100 watter in trade----- I don't know if this a permanent trade or not)----- we were using this older DR103 clone as a bass head in my shop and it performed well.
Here it is when it was first built:
Yes, Edcor iron used on this build (they've worked well for over 15 years)----- I've used Heyboer Partridge clone iron for all the Hiwatt clones I've done since then----- The Heyboer Partridge clone iron wasn't available when I built this one.
This older DR103 clone was built on an aluminum Hiwatt sized blank chassis I got on the 'bay from a guy in France who had built several chassis for himself and sold off the extra ones----- I still have one of these aluminum blank chassis left (probably will build a Hi Gain head with it soon).
I'm building out my stash of chassis, transformers, turret boards, head cabs, etc and making cool projects out of them.