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Philadelphia Radio Mfg. Co.

Philadelphia Radio Manufacturing Company, 3040 Stiles Street, Philadelphia, Pennsylvania, USA


First seen: 01-Jan-1920
Last seen: 31-Dec-1920

Brand(s): Standard, Philotron

Philadelphia Radio Mfg. Co. is listed as producing 'Standard' brand tubes, in Nov-1926, Radio Retailing, pg. 70. 

No further records of their 'Philotron' have been found.

Standard variants:

 
S D
T A
A R
N D
UX 201A
1
Tube
{v1} Globe, short UX bakelite base, tipless, 6v DC, 40-150v plate


S D
T A
A R
N D
UV 201A
2
Tube
{v2} Globe, short UV bakelite base, tipless, 6v DC, 40-150v plate


S D
T A
A R
N D
UX 201A +
3
Tube
{v3} Globe, 'Improved 201A', short UX bakelite base, tipless, 6v DC, 45-180v plate


S D
T A
A R
N D
UX 200
1
Tube
{v2} Globe, 'Detector', short UX bakelite base, tipless, 6v DC, 22v plate, 1.0amp






Bibliography references:
  1. Radio Retailing, Jun-1929, pg. 267. From AmericanRadioHistory.com. Retrieved 30-Nov-2018. !
  2. Radio Broadcast, Dec-1929, pg. 123. From AmericanRadioHistory.com. Retrieved 30-Nov-2018. !

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