The Brush Development Co. BL-905. What is it? - diyAudio
Go Back   Home > Forums > Blogs > tonekwest
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Rate this Entry

The Brush Development Co. BL-905. What is it?

Posted 9th January 2012 at 11:41 AM by tonekwest

I have what looks to be an amplifier of some sort and was wondering if any of the forum members may be familiar with what I actually have. So far, my search results have come up with nothing.
It is from the Brush Development Company. Type BL-905. Will try to post list of tubes in the unit tonight.
Attached Thumbnails
Click image for larger version

Name:	BRUSH  (1) (640x296).jpg
Views:	151
Size:	143.9 KB
ID:	560   Click image for larger version

Name:	BRUSH  (4) (640x332).jpg
Views:	164
Size:	159.0 KB
ID:	561   Click image for larger version

Name:	BRUSH  (13) (640x306).jpg
Views:	170
Size:	163.4 KB
ID:	562   Click image for larger version

Name:	BRUSH  (21) (800x600).jpg
Views:	161
Size:	304.9 KB
ID:	563  
Posted in Uncategorized
Views 1226 Comments 2
Total Comments 2

Comments

  1. Old Comment
    Here is a link to more pics of the amp.
    Brush Development Co pictures by tonekwest - Photobucket
    permalink
    Posted 9th January 2012 at 11:55 AM by tonekwest tonekwest is offline
  2. Old Comment
    rjm's Avatar
    It's probably a direct-coupled oscillograph amplifier. It's a voltmeter and the output would move the pen of a plotter. Probably late 40's.

    Link to IEEE article, subscription required.
    permalink
    Posted 13th January 2012 at 06:31 AM by rjm rjm is offline
    Updated 13th January 2012 at 06:36 AM by rjm
 
Hide this!Advertise here!

New To Site? Need Help?

All times are GMT. The time now is 03:11 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright 1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki