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Title: 5D21 Tube Info Needed Post by: Dave KB2ARL/8 on June 03, 2006, 09:48:28 AM Hi All,
I have a pair of 5D21 tubes I want to put into AM service and can't find any specs on this tube. Does anyone have any information on the pinout, voltages and specs for this tube? Any information would be greatly appriciated. *TIA* 73's, Dave KB2ARL Title: Re: 5D21 Tube Info Needed Post by: kc2ifr on June 03, 2006, 10:19:19 AM http://www.tubecollector.org/5d21.htm
Title: Re: 5D21 Tube Info Needed Post by: WB6VHE on June 05, 2006, 03:03:53 PM Hi Dave! AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Try this: http://www.mif.pg.gda.pl/homepages/frank/sheets/061/p/P535-1E.pdf It's a complete data sheet on the tube. This is the best tube data website on the internet, in my opinion. Here's the address for the main page: http://www.mif.pg.gda.pl/homepages/frank/ Good luck...by the way, that's an interesting tube. I'd be interested to hear about your progress with the rig you are planning, the design, performance, etc. Please keep in touch (if you have the time and inclination, that is!). You can email me at: shaw@swcp.com. 73, Ken W5KFS (ex-WB6VHE) |