[Amps] 4cx350f/j's

[Rich]

>
>
>> Any of you fellas ever apply these to a project for amateur amplification?
>> Is 
>> there any disadvantage to the 26.5 volts on the heater, or does it just
>> heat 
>> quicker? Not much info on Rell's page via Richardson's Electronics. Let me
>> 
>> know.
>> Paul...N2TZV
>> 
>	[Steve Katz]  The advantage of 4CX350Fs is that they're often found
>new surplus very inexpensively.  I've used them for many years, can't tell
>any difference in operation between the 350F and a 250B, and never had to
>perform any circuit alterations other than the filament transformer.  I
>don't recall the 350F heating up any quicker than a 250B -- and I always
>used a 120 second timer to assure warmup prior to hitting the tube with
>drive, plate or screen voltage. -WB2WIK/6
>
**  a friend who worked at Eimac said an extra half-minute was better.

-  Rich..., 805.386.3734, www.vcnet.com/measures.