|
Title: Pulse service 4-400 tubes Post by: Tom W2ILA on April 28, 2007, 09:04:56 AM I have a pair of 4PR400 Eimacs (8188).
These are the pulsar version of the 4-400 "suited for long pulses". Are these suitable plug-ins for standard 4-400 equipped transmitters (t-368)? TM Title: Re: Pulse service 4-400 tubes Post by: W3SLK on April 28, 2007, 09:23:45 AM Tom, as far as I know, yes they are. Eric, WB4VVI (SK) believed that the everything was little more on the 'heavy duty' side since they were rated for pulse service. For years he ran a pair in his Globe King 500 "E" model, (AKA a modified CCA 1000D modulated by 833's), with out any ill effects.
Title: Re: Pulse service 4-400 tubes Post by: The Slab Bacon on April 29, 2007, 08:51:56 AM Tom,
To the best of my knowledge the pulse rated tubes are just a little higher grade of their standard versions. (and acually a litle more desireable). Many people have been using them for replacements for many years without any problems. The Slab Bacon Title: Re: Pulse service 4-400 tubes Post by: WA1GFZ on April 29, 2007, 08:55:03 PM some PR tubes take more heater amps AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
|