Eimac specified 8.3 volts for the 6C21 in pulse service.
7.5 volts is the correct voltage in non-pulse service.
73, Barrie, W7ALW
- Original Message -
From: "Geoff Edmonson" <[EMAIL PROTECTED]>
To:
Sent: Thursday, January 29, 2004 5:06 PM
Subject: Re: [AMRadio] request for info on usi
Hey gang
the tank cap, jack-bar, 80m HDVL coil and link didn't sell.
I still have the following:
(3) 450TL's
(1) 450TH
(1) 304TL I just bought off of e-bay (filaments work fine) ,
(1) B&W butterfly tuning capacitor with nuetralizing caps
(1) HDVL jack-bar and 80m HDVL plug-in coil, w/3 t
> > Hey gang
> >
> > I still need to sell a few things.
> > (3) 450TL's
> > (1) 450TH
> > (1) 304TL I just bought off of e-bay (filaments work fine) ,
> > (*SALE Pending*)(1) B&W butterfly tuning capacitor with nuetralizing caps
> > (*SALE Pending*) (1) HDVL jack-bar and 80m HDVL plug-in coil
> This is at the expense of tube life. If the tube is run at 7.5 volts it
> will do just fine in modulator or rf power amp service, and will last much
> longer. Essentially, Eimac said run a 450T's filament voltage up, and it
> will deliver incredible peak power while it lasts, but will have a
The specs are not much different than the 450TL. I've used the 450TL and
6C21 interchangeably in the same rig.
The tube has an oddball filament voltage something like 8.1 volts. The
Eimac spec sheet says that it was designed for radar pulse modulator
service. I once read somewhere that
> Hey gang
>
> I need to sell a few things.
> (3) 450TL's
> (1) 450TH
> (1) 304TL I just bought off of e-bay (filaments work fine) ,
> (1) B&W butterfly tuning capacitor with nuetralizing caps
> (1) HDVL jack-bar and 80m HDVL plug-in coil, w/3 turn link...
>
> A complete set of BC-610 pl
When it comes to researching transformers, I have found that there are 2
levels--finding out what the heck kind of transformer the model number
represents, and then mapping out the connections. For universal audio
transformers, these connections never seem to be straightforward. Many of them
ha
Hey gang
I need to sell a few things.
(3) 450TL's
(1) 450TH
(1) 304TL I just bought off of e-bay (filaments work fine) ,
(1) B&W butterfly tuning capacitor with nuetralizing caps
(1) HDVL jack-bar and 80m HDVL plug-in coil, w/3 turn link...
A complete set of BC-610 plug-in coils
(I have
sorry to take up your time... dns block are so indiscriminant, these days...
73 = Best Regards,
-Geoff/W5OMR
Hi Mark, Yes,there is an article using the 6C21. It appears in CQ April
1962, Called "The
Florida Rock Crusher" a 10n thru 80 meter gg rf amp. 73 Charlie K4LJH
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