Recent Posts

51

Stereomour II / Re: Right Channel Hum

« Last post by Paul Birkeland on March 25, 2025, 12:59:11 PM »

replacementparts(at)bottlehead(dot)com

Typically that resistor will blow if a 2A3 is plugged into the socket without care as to where the fat pins go.  If you push hard enough, the fat pins can be forced into the skinny holes.

52

Stereomour II / Re: Right Channel Hum

« Last post by thoven0215 on March 25, 2025, 07:51:48 AM »

You are speaking about the 130 ohm 2W metal film resistor correct? It does appear as infinite resistance. Can you please remind me what the email is to order spare parts? Thank you.

53

General Discussion / Re: Western Electric 300B B-stock tubes

« Last post by Paul Birkeland on March 25, 2025, 06:03:48 AM »

https://hifihaven.org/index.php?threads/new-western-electric-300bs-from-rossville-not-the-same-as-originals.12961/

54

Stereomour II / Re: Right Channel Hum

« Last post by Paul Birkeland on March 25, 2025, 06:02:15 AM »

With the amp powered down and the high voltage bled off, you should be able to measure the resistor that goes to terminal 34 while it is installed in the amp, I'd imagine it will measure as infinite resistance and needs to be replaced.

55

Stereomour II / Re: Right Channel Hum

« Last post by thoven0215 on March 25, 2025, 05:55:14 AM »

I put the amp back into pre-shunt regulator conditions, and the issue of 34U being 1.8 volts still persists.

56

General Discussion / Western Electric 300B B-stock tubes

« Last post by Jay on March 25, 2025, 05:51:10 AM »

Would these be appropriate for Kaiju or BeePree2? Would the biasing be a problem?
https://www.tubedepot.com/products/western-electric-300b-b-stock

57

Mainline / Re: Mainline Questions

« Last post by Paul Birkeland on March 25, 2025, 04:44:06 AM »

The second way is more correct than the first, but both would work.

58

Crack / Re: Bottlehead issue after changing chassis

« Last post by Applemacman on March 25, 2025, 03:34:24 AM »

Yes I removed it frim the wooden chassis and put it into a metal chassis that matches an RIAA valve amp I built. I had to cut a few wires and rewire them after relocation. However even though Im sure I followed and double checked the correct paths for these wires, I will go over it again this weekend.

59

Mainline / Re: Mainline Questions

« Last post by Tabaia on March 24, 2025, 09:17:44 PM »

I think i figured it out - Could someone confirm the position of the film Capacitor

60

Mainline / Re: Mainline Questions

« Last post by Tabaia on March 24, 2025, 08:26:07 PM »

Could i please get confirmation that this capacitor is in the correct position.