diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Tubes / Valves (http://www.diyaudio.com/forums/tubes-valves/)
-   -   6146B (http://www.diyaudio.com/forums/tubes-valves/228283-6146b.html)

N4BBQ 20th January 2013 09:05 PM

6146B
 
I have quite a few of these tubes. Anywayz, my step-son is moving into his first "real" place and I decided to build him a valve audio amp and a set of speakers for a house-warming (pun intended) gift.

I've been tinkering around with just the 6146B (just driving it with my iPhone) and I'm quite pleased with the sound.

I plan to drive the 6146B with a 1/2 a 12AX7, so more to follow.

DF96 20th January 2013 09:13 PM

I assume from your ID that you know how to keep a 6146B tame in an RF sense? As others sometimes discover, a good VHF valve does not always realise that we only want it to amplify up to about 20kHz.

N4BBQ 20th January 2013 09:31 PM

Quote:

Originally Posted by DF96 (Post 3335019)
I assume from your ID that you know how to keep a 6146B tame in an RF sense? As others sometimes discover, a good VHF valve does not always realise that we only want it to amplify up to about 20kHz.


Haha. Yessir. She's tame and these critters can go on up to about 200mc if I remember correctly.

N4BBQ 23rd January 2013 01:19 AM

Got her running class A and it sounds great and "she's running real hot old man; real hot..."

But the room smells great.
---
http://168.8.96.77/~pheaton/6146A.jpg

Mickeystan 23rd January 2013 04:19 AM

Now your showing your age.....
 
N4BBQ, "220mc", you know a lot of these new younger kids in this audio forum may not understand megacycles..... I remember when 220mc was a big deal. Hope you enjoy working with the 6146 tubes as I have a fond memory of them. W7KXW (aka Mickeystan)

N4BBQ 23rd January 2013 10:36 AM

Quote:

Originally Posted by Mickeystan (Post 3338360)
N4BBQ, "220mc", you know a lot of these new younger kids in this audio forum may not understand megacycles.....

I just never like that Hz mess. haha

Quote:

Originally Posted by Mickeystan
Hope you enjoy working with the 6146 tubes as I have a fond memory of them. W7KXW (aka Mickeystan)

I'll tell you that glowing plate makes me want to build up an AM transmitter. That'll be a good project for retirement.

My step-son came in when I was working on the "prototype" and he was grinning ear to ear.

Thanks for chiming in. Maybe we'll meet on the luminiferous ether one of these days.

N4BBQ 10th March 2013 05:00 PM

Well I found a few 6SL7s so its out with the 12AX7 driver, and in with these. It sounds pretty darn good, although the OPT I'm using is a power transformer from a UPS (125VAC/16VAC).

I have some Edcor ones on order. They should be here in a few weeks.

I really like the 6146, with the exception of the low screen grid voltage.


All times are GMT. The time now is 06:39 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2