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Professional Tube Tester 69

Professional Tube Tester 69; National Radio (ID = 644798) Equipment Professional Tube Tester 69; National Radio (ID = 644799) Equipment
Professional Tube Tester 69; National Radio (ID = 644800) Equipment Professional Tube Tester 69; National Radio (ID = 644804) Equipment
Professional Tube Tester 69; National Radio (ID = 644806) Equipment Professional Tube Tester 69; National Radio (ID = 644807) Equipment
Professional Tube Tester 69; National Radio (ID = 644808) Equipment Professional Tube Tester 69; National Radio (ID = 644810) Equipment
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Professional Tube Tester 69; National Radio (ID = 644798) Equipment
National Radio: Professional Tube Tester 69 [Equipment] ID = 644798 500x333
Select picture or schematic to display from thumbnails on the right and click for download.
For model Professional Tube Tester 69, National Radio Institute (NRI); Washington, DC:
ebay #220455757876
 
Country:  United States of America (USA)
Manufacturer / Brand:  National Radio Institute (NRI); Washington, DC
Year: 1948 ? Type: Service- or Lab Equipment
schematic requested
Wave bands - without
Details
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Professional Tube Tester 69 - National Radio Institute NRI;
Material Leather / canvas / plastic - over other material
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 10 x 11 x 6 inch / 254 x 279 x 152 mm
Net weight (2.2 lb = 1 kg) 10.5 lb (10 lb 8 oz) / 4.767 kg
Collectors' prices  

Model page created by Meyer Rochwerger. See "Data change" for further contributors.

All listed radios etc. from National Radio Institute (NRI); Washington, DC
Here you find 15 models, 14 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.

 


Forum contributions about this model
National Radio: Professional Tube Tester 69
Threads: 1 | Posts: 2
Hits: 510     Replies: 1
nri: 69; Professional Tube Tester
Frank Joiner
27.Dec.13
  1

Good Morning and happy new year ! I have picked up a model 69 Tube tester and I am concerend it may have some problems. Before I get to working on it can someone tell me if there is a schmatic available ? I am sure it has some old Caps or resistors that pehaps need to be replaced as preventivive mainenance .

Kind Regards,

Frank Joiner

Ernst Erb
31.Dec.13
  2

Dear Frank
Such schematics are rare and it is quite possible that no member has it or is aware of your request.
I would consider to check other similar tube testers for schematics. There are very few different principles and the flow as such is very simple. It is often only the big number of wires that make things a bit more tricky.

I think you have also better chance if you take and upload some photos of your set and load them up.

You should first click the link FAQ and there read the step-by-step-instruction - to get a size of 933 pixel width (up to 1400 hight) with still less than 180 KB size.

Take for instance the meter without flash and frontal, the same with the lower part with all the switches etc. And most important from the inside and the wiring - before altering anything. By that one can also see if there is an obvious problem.

Members see then also that you are an active member and want to help. They may be able to help without the schematic. Good luck!

 
National Radio: Professional Tube Tester 69
End of forum contributions about this model

  
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