[ARC5] Filament Question

[Kenneth G. Gordon]

On 3 Oct 2015 at 10:02, Scott Johnson wrote:

> it is in a receiving type.  All that being said, I think I would still baby my
> 1L6's!
> 
> Scott W7SVJ

Boy! You're telling me! At something like $50+ a pop, I intend to take VERY 
good care of mine.

BTW, and FYI, there is a fellow who advertises on eBay at regular intervals 
who makes a superb solid-state version of the 1L6. He mounts them all 
inside glass tube envelopes, and his prices are more than reasonable.

He also made me, as special orders, solid-state versions of the 1T4 for my 
R-1004 receivers. 

Although, when using the original 1L6, I experience severe "pulling" of the 
HFO when either using the transmitter on or near the receive frequency, or 
when receiving a strong signal, when using the solid-state version, the 
receiver is as steady as a rock, zero "pulling" being noticed.

Zero-beating is thus a trivial experience with the AN/GRC-109 instead of 
being fraught with frustration.

Furthermore, and although I have not yet tested this, it "appears" to my ears 
as though the receiver is both more sensitive and less noisy when using the 
solid-state "tubes" in place of the glass ones.

I bought the solid-state versions with a view to "saving" my glass tubes.

YMMV

Ken W7EKB