3 pcs of 5R4WGA/B full wave, long life, hirel. vacuum rectifier tubes, very good

Description

3 pcs of 5R4WGA/B full wave, long life, hirel. vacuum rectifier tubes, very good
Description 5R4WGA/B:
The 5R4WGA resp. 5R4WGB are powerful, full wave vacuum rectifier tubes, direct heated with 5,0 VAC, 2,0 Amp., designed for max. rectified DC_output = 285 mA @ U_input = 2x 700 VAC in full- wave configuration with capacitor as first filter. The 5R4 tubes with WGA- or WGB-suffix tubes are ruggedized, shock resistant, usable at high altitudes and have a high reliability over a long lifetime. The 5R4WGB, according to a datasheet published by Tung-Sol, should have an improved production quality compared to the 5R4WGA.
For more technical information see *)
Condition:
Unboxed, used, but in good condition, apparently free of mechanical and electrical damage as well as of gas. The emission of both partial systems of both members of the pair is "very good" .
Emission tests:
All partial diode systems were tested with the follwing parameters according to *):
U_plate = 45 VDC,  U_h = 5,0 VAC; the index value (=100%-value) of I_plate is 150 mA
Results of all diode systems:
I_plate = 103, 107, 108, 108, 112, 120 mA
==> very good
The single results/diode are written on the bottom of the tube sockets each.
*)  https://frank.pocnet.net/sheets/127/5/5R4WGA.pdf
https://frank.pocnet.net/sheets/127/5/5R4WGB.pdf
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Achtung! Privatverkauf meiner Röhrensammlung!
Nur deshalb verkaufe ich die Röhren ohne Funktionsgarantie und Rücknahme als DEFEKT !
Attention! This is a private sale of my tube collection!
That's why I sell the tubes without warranty and return as DEFECTIVE!
Versand / Shipping:
Innerhalb Deutschland
im versicherten Paket mit DHL oder Hermes, Zusendung an Abholstation möglich! Andere Versandarten bitte anfragen! Angegebene Versandkosten beinhalten Verpackungskosten!
International bidders are welcome!
Shipping possibilites:
Member countries of the EU:
Packaging and shipping, registered and with tracking service up to a total weight of 2,0 kg with German DHL-Service
for Euro 14,00.
World Wide Shipping outside EU:
(not provided for this article)
I
basically
do not ship without registration, insurance and tracking services!
Combined shipping:
I support combined shipping as far as possible.