Name: | PTR - Polskie Towarzystwo Radjotechniczne; Warszawa (PL) |
Abbreviation: | ptr |
Products: | Model types Tube manufacturer |
Summary: |
Polskie Towarzystwo Radjotechniczne (PTR) Aparatów odbiorczych, lamp katodowych, sprzętu radiotechniczne. See also: Polskie Zakłady Marconi |
History: |
Country | Year | Name | 1st Tube | Notes |
---|---|---|---|---|
PL | 24–28 | 5 LC/2 | Wechseln Bereich - Schalter. Wooden case with black front panel. | |
PL | 24–28 | 4 LB | SRM | |
PL | 24–28 | 5 LB | RM | Wellenbereich - 3 wechseln Teilen. Alternative tubes: 4× SRM and 1× DE. |
PL | 27/28 | 5 LS/1 | S625 | The tube S625 came on the market in 1927. We have no evidence that this model 5 LS/1 from ... |
PL | 24–28 | 3 LB | SRM | |
PL | 24–28 | 4 LB/S1 | SRM | mit Bereichsschalter. |
PL | 24 | 5 LC | Bereich wechseln - Schalter. Wooden case with white front plate. | |
PL | 24–28 | 2 LE | ||
PL | 24–28 | 3 LE | ||
PL | 24–28 | 4 LE | ||
PL | 24–28 | 2 LM | ||
PL | 24–28 | 1 LM |
Further details for this manufacturer by the members (rmfiorg):
Data Compliance | More Information |