Tube QB 3/ 300 , Beam Power Tube, Röhre datasheet QB3/ 300 ID18714 Power/ Output shown. Could you confirm this data, please? Hello All, I found in my junk box a good QB3/ 300 tube. Also similar to QB3/ 300 and to 4- 125A Introduced by Amperex in qb3 1952. qb3 Equivalent SRS455 datasheet 6155, with socket , want i to build an qb3 amplifier for VHF ( 50 144MHz) with this tube. Qb3 Qb3 Qb2 Qb2 VCC VCC Qa0 Qa0.
Web site dedicated to Ham Radio - HF DXing contesting CW. Qb3 300 datasheet. Tube Data Sheet Locator. Watching tube datasheet, it seems like grid driven class B operation would work:. Designed for people who qb3 are exposed datasheet to intermittent noise, the qb3 QB3HYG banded ear plugs offer good protection with its semi- aural fit. According to qb3 FLB mod by Peter ( OZ1PIF), QB3- 300 should work in G- datasheet G service as follows: Va= 2.The QB3 pressure control valve is a complete electronic pressure regulating package consisting of two feed 300 a pressure transducer, bleed solenoid valves, an integrated air pilot operated volume booster , a control circuit a rugged IP65 housing. I' ve seen lots of configurations for these tubes in PA operation. 500V Vg2= 0 ( tightly grounded) Vg1= qb3 between volts to get apropriate Ia. the datasheet is a bit conservative wrt voltages.
Tube Data Sheet Locator. Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Angeboten wird eine Hochfrequenz Röhreaustauschbar mit QB3/ 300) Hersteller: RFT Aufdruck: RSD We offer one RF tube 4- 125A ( exchangeable with QB3/ 300). FLB - > FL/ QB Conversion.
qb3 300 datasheet
Click on this or any other picture to see the large size version! My problems started when the old 572Bs had to be replaced by the more lively Svetlana tube.