Just to clarify, early TR-3's don't have the lamp.
Kihwal, K9SUL ----- Original Message ---- From: Garey Barrell <[email protected]> To: Bob W7AVK <[email protected]> Cc: [email protected] Sent: Sun, October 16, 2011 11:08:01 AM Subject: Re: [Drakelist] Receiver protection lamp Bob - I've never seen one of those. I thought they had the gas discharge/ gas plasma transient suppressor (90L) used in the later TR-7s.?? It was to protect the SS front end of the TR-7 / R-7 against static discharge and/or nearby lightning strikes. The tube fires at 90V. 73, Garey - K4OAH St Charles, IL Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line and TR-4/C Service Supplement CDs <www.k4oah.com> Bob W7AVK wrote: > List - The same lamp was used by Drake in an option for the TR-7 and > R7s. Called RP-7. Was sold as a "receiver protector" in a small box that > was inserted in the coax before the receiver input. > > If someone needs one of the lamps I have a couple. > > Also have a small number of the hard to find PIN diodes used in the TR-7 > series. > > 73 Bob W7AVK > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
