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--- In ham_amplifiers@..., R L Measures <r@...> wrote: ### Not quite. The GRID RING is bonded to the chassis !! This > > is not a case like Rich using 1/2 watt resistor's as "grid fuses" >

a little current begins to flow, the tube cuts off. My modified SB-220 and TL-922 do this, and if a tube ever happens to short, nothing is damaged. #### Partially agreed. When a grid fuse [inserted

wrote: weren't looking. A little wind may restart the kindling again. ######## Nice try Mike.......... it sure as heck didn't make it. Now, W8JI et all... has pissed off HSU.... somebody should tell

ORIGINAL MESSAGE: ------------ REPLY FOLLOWS ------------ Word is he's still out there with his grid dip meter looking for series resonances. :-) Bill, W6WRT

Nothing happens. ... > R L Measures, AG6K, 805.386.3734 r@...

Hey folks, I just planted the seed over there when the 'moderators' weren't looking. A little wind may restart the kindling again. Will is a good choice, he's a little more subtle than me;>)

R L Measures wrote: <snip> nope, no grid fuse if the grid is bonded to the chassis directly ;) I was referring to B- floating off ground but if it isn't, then there isn't an issue. 73, Tony W4ZT

R L Measures wrote: Amen!! So true so true. Thats why I built a 8171! At one point Rich also gave me some help, now it runs like a charm! 73 Jim SM2EKM

On the "other" reflector a statement was made about TPTG oscillators and I posted a follow up question about the time of the Great Migration to this reflector so I never did get an answer. I'd like to

That's the awful reality of adding cathode RF-NFB with thoriated tungsten tubes in parallel With multi-tube indirectly-heated cathodes, adding cathode RF-NFB is a piece of cake, but with

Why read it more than once? Before I started the grate parasite debate with Tom I was warned by a Ham in Manhattan that he wins debates in the eyes of his groupies by never backing down, even on

Tony -- Have you ever blown a grid fusing R and observed what happens?

Try posting this on AMPS to see if Tom is staying awake (he censors it).

When a high-R exists in the cathode circuit, as soon as a little current begins to flow, the tube cuts off. My modified SB-220 and TL-922 do this, and if a tube ever happens to short, nothing is

the ### Will.... I'm gonna nonminate you as... "project manager". ...so you can round up all these .."stragglers".... and bring em over ...to the dark side. Jim VE7RF

wrote: the suppressor? Maybe you can give us some insights how you go about you place a picture of your 3cx6000 suppressor on here? ### I think u can just see it in the pix. I posted a ton of pix on

060920@...> wrote: ### My concern with electronic protection is.... if it malfunctions... when u need it ! I have seen these high energy diverter's.. [used to crow bar HV supplies, used in commercial

All, Hsu posted this at the other group. To be made in China, it looks a lot like an AL-811 if you ask me. BTW, did anyone ever ask Hsu to the group here?

pentalab wrote: <snip> agreed yeah... and how sweet it is! That's good and also the 1K safety resistor makes it all good ;)