VVR Install Guidance in 5E3 Tweed Deluxe

[tictac]

Interesting...

[bretschwartz]

Hi Bret,

It looks like you're getting plenty of good advice as to how to wire the VVR into the circuit. So I thought I'd address a different subject: When I installed a VVR into my Tweed Deluxe clone, I removed the standby switch and mounted the VVR pot in the hole that used to be for the standby switch. The 5E3 panel is pretty cramped, so adding a hole for the VVR will be tricky at best. You can get a shoulder washer that adapts the 1/2" hole down to the needed 3/8" hole for the pot. After having read most of Merlin's power supply book, I am now with the understanding that a standby switch is completely unnecessary in terms of tube health, but I tend to turn the VVR all the way down when I do a cold start - what can I say? Old habits die hard!

All the best,
Lou

Lou,

Would it be too much to ask to post or PM some pics of your tweed deluxe? I want to see your VVR installed in chassis and where exactly you made your connections.

Regarding the physical VVR location, I have not thought about that yet, I will probably take your advice. On the Champ I just built, I installed the VVR into the existing fuse location and reinstalled fuse out the bottom of the chassis.


thanks for all the thoughtful info!!!

Hi Bret,

A few pics attached. The VVR Board is just to the right of the power transformer. You can see the twisted triplet of wires (Yellow, Purple, Green) that go to the VVR pot at the left end of the control panel. The two yellow tubular caps that form a "V" at the right end of the chassis are the ac-coupling caps at the two input stages. I did not install caps for the volume pots - and in my case, they proved unnecessary - no scratchy volume controls.

HTH,
Lou

Lou,

Thanks so much! I am definitely going to install VVR in standby location. I'll get back in touch as soon as i'm ready to wire her up. Bret