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I don't know about the possible sound difference with the 'A', but I have a Crescendo 'B' and it is rated 100 watts according to the label. I have used it in my 50 watt combo and it sounds great at clean or slightly overdrive volumes. At higher volume levels the single speaker doesn't handle the dis...

I've seen them show up on eBay once in a while. Here's a Sound City panel that ended recently:

Back Panel

One like this might fit.
Cheers!

Thanks for all the help!

I'm working on a newly acquired '73 DR103 and I hope someone with one of these can provide some info for me. With the chassis removed from the cabinet, there is a large rectangular piece of sheet metal that is currently held in place with electrical tape to cover the chassis components. When the cha...

Thanks for the votes. For me it would be a tough call, but I would take the DR201 for the music I normally play which is a mixture of clean and raunch. A few years ago I would have brought the two 50's for a stereo sound, but nowadays I prefer a single cab and position it right near where I am playi...

Guys, I appreciate the vote, although I hadn't expected it would be so polarized towards the cranked 50. I enjoy the sound of my 50; although it's a 2-holer I'm using a 12AT7 in the PI and for my gigs I run it well into breakup. I am considering a 200 watt for the clean headroom, but have never play...

All, Here is a hypothetical scenario. You have an indoor gig playing your tunes where a mid 70's DR103 volume-wise would be set just at the point of it beginning to breakup, but you don't have one. You have access to two mid 70's DR504's, a DR201, cab's for the amps, and distortion and stereo effect...

You know, I always read how good and reliable the original Mullard 12AX7's are. I don't think I ever read a bad thing about them, but it seems even they have a limited lifespan.

Success

There was a full set of the original Mullard 12AX7's when I purchased the amp. I swapped out V3 with a different 12AX7 and the problem is solved. I guess putting a 12AT7 in V4 just exposed some defect in the original V3 12AX7 that couldn't be heard otherwise.

Gremlins

It got a little more interesting. :? The CV4024 worked fine in my other non-Hiwatt amp in every spot - no buzz whatsoever, so the tube appears ok. In the Hiwatt PI position: 1. I tried a different CV4024 and a Jan Philips 12AT7 and both caused the buzz. 2. The existing 12AX7 and a 12AU7 I had lying ...

Hello All, I tried to make my late 70's 2 hole Hiwatt sound a little cleaner by swapping the 12AX7 with a 12AT7 in V4 (PI). I verified the correct spot as V4 seems to be in the middle of the 3 tubes close together. I installed a CV4024 12AT7 and voila, alot of BUZZ coming through the speaker. If I s...

Hello All, I wanted to say hello and thanks to the forum members who've contributed some great information to this board. I went from cheap practice amps -> VG modeling -> Hiwatt over the years and I'm very happy with my current rig, although I wish I hadn't taken so long to find it. Thanks to VHR -...

P.M. sent.


Cheers!