D-Lite redux - an unintentional manifesto

[JimiB]

As far as the PAB, dogears lays it out in a post a few above this. I padded the ground connection in PAB with a 4M7. I'm thinking about trying a 2M2, which I didn't have on hand at the time.

I really like this setup. I can see where guys would use a 72K here. Even 2.2M is a lot of boost in clean mode. Sounds killer. I think I'm gonna use a 220K and try it live. I would like to do 220K in clean mode and 2.2M in OD mode, but I dont know if thats possible with only 2 relays.

[jurgen]

- 1k/18k/2k2 dropping string (I know it looks odd, but the voltages are just right.)

Thanks for posting this stuff!

What were those just right voltages?

[greiswig]

- 1k/18k/2k2 dropping string (I know it looks odd, but the voltages are just right.)

Thanks for posting this stuff!

What were those just right voltages?

I'd love to hear this, too...

[kleinm]

- 1k/18k/2k2 dropping string (I know it looks odd, but the voltages are just right.)

Thanks for posting this stuff!

What were those just right voltages?

I'd love to hear this, too...

Sorry, I've been out of town and only had time to check my email occasionally. . I'll look at my notes and post this in the coming week. Greiswig - PM sent.

[phsyconoodler]

With repect to the PAB,in the clean mode mine adds too much of a boost to my liking,but it is perfect in the OD mode.How would one go about padding it in the clean mode without disturbing the OD?

[JimiB]

I would like to do 220K in clean mode and 2.2M in OD mode, but I dont know if thats possible with only 2 relays.

beat ya to it!
I think it would require a seperate relay.

[greiswig]

Thanks for posting this stuff!

What were those just right voltages?

I'd love to hear this, too...

Sorry, I've been out of town and only had time to check my email occasionally. . I'll look at my notes and post this in the coming week. Greiswig - PM sent.

Okay, the week's almost up! Did you find those "magic voltages?"

[kleinm]

Not "magic"...but they sound really good.

FWIW, when I wrote these down, I had a EH in V2 that was measuring a little high. I started to get nervous about my string, but I tried a different one and it brought the 199 to 197 and the 217 to 213. Didn't notice much sound difference.... Just a friendly reminder how much tubes effect the plate voltages.

And a note - I'm not pushing this dropping string as anything even remotely close to "right". It started as the original D'Lite dropping string, and I tweaked until it brought the voltages to where they sounded good to me. YMMV.

Anyway:

B+1 = 444-445 VDC
B+2 = 441 VDC
B+3 = 433 VDC
B+4 = 351 VDC
B+5 = 344 VDC

V1A Plate - 193 VDC
V1B Plate - 206 VDC

V2A Plate - 199 VDC
V2B Plate - 217 VDC

V3A Plate - 300 VDC
V3B Plate - 289 VDC

V4 Plate - 443 VDC
V4 Screen - 440-441 VDC

V5 Plate - 443 VDC
V5 Screen - 440-441 VDC

[jurgen]

Thanks Kleinm

I pretty much followed you down the garden path on this

I got:

V1a 205
V1b 205

V2a 201
V2b 202

V3a 317
V3b 313

V4,5 442 plates 441 screens

[greiswig]

Thanks for posting, mklein. I appreciate your input!