A Audio and hi-fi forum. AudioBanter

Go Back   Home » AudioBanter forum » rec.audio » Vacuum Tubes
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Precision 900B tube tester,unique?



 
 
Thread Tools Display Modes
  #1  
Old April 24th 17, 01:39 AM posted to rec.audio.tubes
[email protected]
external usenet poster
 
Posts: 1
Default Precision 900B tube tester,unique?

On Monday, May 19, 2003 at 8:45:00 AM UTC-7, Luis Pla Revuelta wrote:
> Hi
> I am restoring this tube tester from Precision Instruments.
> This model looks very old.No roll chart in this model,so I need the tube data
> sheets/book,and also instruction manual/schematics...
> No info available on the net.
> All help appreciated.
>
> Regards.


I know this thread is ancient, but I found it for my search for the very same info. This seems to be a real ******* unit, there is _no_ data anywhere on the 900. People say to use the 910 data, which is available, but the 900 has different selectors and switches on it. Hope someday someone finds and shares the manual and schematic for this unit.
Ads
  #2  
Old April 28th 17, 11:44 PM posted to rec.audio.tubes
Cesarion76
external usenet poster
 
Posts: 2
Default Precision 900B tube tester,unique?

El domingo, 23 de abril de 2017, 21:39:55 (UTC-3), escribió:
> On Monday, May 19, 2003 at 8:45:00 AM UTC-7, Luis Pla Revuelta wrote:
> > Hi
> > I am restoring this tube tester from Precision Instruments.
> > This model looks very old.No roll chart in this model,so I need the tube data
> > sheets/book,and also instruction manual/schematics...
> > No info available on the net.
> > All help appreciated.
> >
> > Regards.

>
> I know this thread is ancient, but I found it for my search for the very same info. This seems to be a real ******* unit, there is _no_ data anywhere on the 900. People say to use the 910 data, which is available, but the 900 has different selectors and switches on it. Hope someday someone finds and shares the manual and schematic for this unit.


Hi, I just bought a working one a few days ago. Mine is Precision 900 series also from 1938. Six tube sockets per side. There's almost no info on this model. It'almost identical to the later models in the 9xx series. But with less buttons and functions. It's limited on the types of tubes you can test since is from the late '30s. For some rectifier tubes you need the extra buttons and controls from later models. The 910 is really close to the "original" 900 but also passed through many revisions. I own also a 954 from 1942 and it's a much more complex beast. Can test many later tubes thanks to the extra control, buttons, etc. Any questions let me know. Bye

  #3  
Old April 28th 17, 11:48 PM posted to rec.audio.tubes
Cesarion76
external usenet poster
 
Posts: 2
Default Precision 900B tube tester,unique?

El viernes, 28 de abril de 2017, 19:44:34 (UTC-3), Cesarion76 escribió:
> El domingo, 23 de abril de 2017, 21:39:55 (UTC-3), escribió:
> > On Monday, May 19, 2003 at 8:45:00 AM UTC-7, Luis Pla Revuelta wrote:
> > > Hi
> > > I am restoring this tube tester from Precision Instruments.
> > > This model looks very old.No roll chart in this model,so I need the tube data
> > > sheets/book,and also instruction manual/schematics...
> > > No info available on the net.
> > > All help appreciated.
> > >
> > > Regards.

> >
> > I know this thread is ancient, but I found it for my search for the very same info. This seems to be a real ******* unit, there is _no_ data anywhere on the 900. People say to use the 910 data, which is available, but the 900 has different selectors and switches on it. Hope someday someone finds and shares the manual and schematic for this unit.

>
> Hi, I just bought a working one a few days ago. Mine is Precision 900 series also from 1938. Six tube sockets per side. There's almost no info on this model. It'almost identical to the later models in the 9xx series. But with less buttons and functions. It's limited on the types of tubes you can test since is from the late '30s. For some rectifier tubes you need the extra buttons and controls from later models. The 910 is really close to the "original" 900 but also passed through many revisions. I own also a 954 from 1942 and it's a much more complex beast. Can test many later tubes thanks to the extra control, buttons, etc. Any questions let me know. Bye


Just forgot, here is a short video I've made https://youtu.be/j1JYeBRLnKk
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
FA: PRECISION Model 10-60 Tube Tester The WoodMitch Shop Marketplace 0 November 15th 05 04:22 PM
Seco tube tester "VT grid circuit tester" any info on it? robert casey Vacuum Tubes 0 August 13th 05 10:12 PM
FA: CENTURY FC-1 "FAST CHECK" TUBE TESTER>By Precision,NICE RICH-WA2RQY Marketplace 0 February 8th 05 04:18 PM
FS: BK Precision Transistor Tester Model 520B (Corrected Ebay Link) jeffblack Marketplace 0 November 28th 04 11:59 AM
Precision 660 Tube & Transistor Tester [email protected] Vacuum Tubes 0 November 25th 04 08:53 AM


All times are GMT +1. The time now is 05:32 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright ©2004-2017 AudioBanter.
The comments are property of their posters.