2D21 RCA NOS Thyratron Jukebox Vacuum Tubes for sale online | eBay
2D21 @ The Valve Museum
1pcs - STC CV797 2D21 Vacuum Tube NOS | eBay
RCA 2D21 VACUUM TUBE THYATRON 6.3V 600MA 7PIN, ELECTRON TUBE, USED | eBay
PL 21 = 2 D 21 Vacuum tube Thyratron 650 V 500 mA Number of pins: 7 Base: B7G Content 1 pc(s) | Conrad.com
2D21 Thytron Vacuum Tube. Designed to be used in relay and grid-controlled rectifier applications. MFR: RCA, Westinghouse, Sylvania, GE, Tung Sol, National. SKU: 2D21. New old stock. No longer available for export.
2D21, Tube 2D21; Röhre 2D21 ID4224, Thyratron
RCA 2D21 VACUUM TUBE THYATRON 6.3V 600MA 7PIN, ELECTRON TUBE 9787679301706 | eBay
2D21 VACUUM TUBE NOS TESTED (B14) | eBay
Thyratrons | Threeneuron's Pile o'Poo
lEeebllD'~1tp'jj 2D12zPage
Electronic Valve - R. C. A., Thyratron, Type 2D21, 1940s
RCA 2D21 Vacuum Tube for Collins KWS-1 Transmitter 7 Pin - Etsy Australia
Lot 8 New General Electric 2D21 Vacuum Tube D235561
National 2D21 Electron / Vacuum Tube / Valve 7 Pin for sale online | eBay
2D21, Tube 2D21; Röhre 2D21 ID4224, Thyratron
2D21 ELECTRON VACUUM TUBE VALVE USED NO BOX NOS
ElectronTubeStore.com
Audio synthesis via vacuum tubes/Tube VCO - Synth DIY Wiki
RCA 2D21 5727 Thyratron Power Radio Tube VT-0686 - Etsy
