Dumble #177 HRM

[boldaslove6789]

Well I thought I could try and give back to this forum instead of leaching all the time .

A friend of mine's Dumble ODS 100w HRM w/ 6L6's serial # 177.

If I could give more info, I would, but I can't. Hope this helps though:

[David Root]

Thanx guy! Don't see anything unusual there at a quick look. Do you happen to know what 12AX7s it came with originally?

[boldaslove6789]

Nope sorry, it was purchased used.

It had RCA 12ax7a's (Fender labeled short plate) in it though, and Raytheon labeled RCA black plate 6L6Ggc's

[bepone]

carbon resistors all the way up, yeah! (my man)
are those filter caps, cheap chinese type? hm hm first time to see those

[stevlech]

Thanks for the shots!

HRM w/ caps on V2? Never seen that before.

[glasman]

Whats up with the grid divider on V2B?

Never seen that before.

Yet another fumble to lock and load .

Gary

[glasman]

Actrually, looking at the PI, there is a LOT of diffences in that amp.

Check out the PI caps and the cathode resistor, looks like a 470. This is not your mothers Skyliner.....


EDIT - naw it is an 820, he just built it in worng .

[glasman]

Thanks for the shots!

HRM w/ caps on V2? Never seen that before.

There are even HRM Dumbles with V1B feedback loops. The one I have seen also have 250pf snubbers.

Gary

[ToneMerc]

carbon resistors all the way up, yeah! (my man)

Yes, it's his typical usuage of Sprague Q Line(aka Beyschlag- Draloric) and Piher, both carbon film resistor types..

TM

[ToneMerc]

Actrually, looking at the PI, there is a LOT of diffences in that amp.

Check out the PI caps and the cathode resistor, looks like a 470. This is not your mothers Skyliner.....

Yep, you definitely don't see Sprague 192's in them everyday.

TM

[bluefireamps]

Wooden sides on the chassis?

[boldaslove6789]

Wooden sides on the chassis?

All amps around this serial number range have a 3 piece chassis and wooden sides (like Dumble #183 etc.)

[dcribbs1412]

Thanks boldaslove6789
did you have a chance to hear it?
if so how did it compare to anything you've built or heard here.

Darin

[markusw]

Cool! Thanks a lot!
May you tell us what transformers it has?

Peace,

Markus

[Structo]

Thanks Greg!