one BATCH of 5 pieces
Metal Ceramic Planar Triode , High Power, High Precision Special Purpose TYPE for Professional and MIL SPECS - Application i.e. in AIRBORNE DEVICES
Manuf. THOMSON TUBES / THALES / EADS
Model YD 1048
NSN 5960-12-165-6996
manufactured 07/2003; NEW and originally packed - see PHOTO
the here offered tube has much higher specs and reliability than the normal on the market available YD1048s from SIEMENS or others, which are out of old stocks and have been manufactured in the 1970s
description: ( DATASHEET available as pdf with email, please ask if you want to get one )
metal ceramic construction ..........high power planar triode.......AIR-cooled......Oxide-cathode
max. frequency > 3.5 GHz
use for RF - amplifiers, grid-or plate- pulsed oscillators, frequency- multipliers, switching of high plate voltages
high amplification factor and trans-conductance; special in frequency stability
filament with indirect heating ( Vf)........................................6.3 V....1.35 A
pulsed plate voltage.................................................................8.5 kV ( cold 10 kV )
average anode current............................................................. 50 mA
anode dissipation...................................................................... 250 W
grid voltage.................................................................................. - 200 V
average grid current.................................................................. 18 mA
grid dissipation........................................................................... 1.5 W
maximum anode temperature................................................. 200 °C
maximum enveloppe temperature......................................... 250 °C
transconductance ( S ) ............................................................. 25 mA / V ( typical )
amplification factor ( my)........................................................... 105 ( typical ) to 150 ( max)
capacitances - 1 MHz capacitance bridge - ......................... Kg1 = 8.8 to 9.8 pF..............g1A = 1.8 to 2.1 pF...............KA = 0.037 pF
The Tubes are BRANDNEW Originally Packed ...... out of NEW PRODUCTION ;
The LOT we offer, was manufactured in July 2003;
so tube will be delivered with our 2 years Warranty
we have many of these tubes in our stock.... please ask for a pecial offer for larger Quantities