Thinking about it a little more, since it may or may not have
transitioned to TX, the driver or any of the other tubes that are bias
controlled can do the same at reduced voltages.
Hope there was no long term damage.
I once worked on a FT101E that had a defective socket on the grid of
one
Hi Damien:
Doesn't change my thoughts really. Even tho the relay for Tx would not
be engaged, and this keeps the cathodes floating and not grounded, with
bias very low or removed from the grids, the tubes will conduct enough
to get hot for sure. I think the worst is that the current comes
Hi Damien:
Yes, especially when replying to posts, be sure to note where the reply
is directed address-wise. Always good to copy the list as well as any
direct message so others can follow along with the discussion responses.
The scenario Garey outlined is very likely indeed. It kind of
I may get disagreement on this but I would NEVER bring up a PS like this
attached to a transmitter.
When you do that, the bias is minimal, and ven at low plate voltage, the
finals are going to be conducting I suspect. Really hard to tell what
is going to be happening. If you want to bring
THe only problem with the captive freeware from the places like
Express is that you cannot do anything else with the result. Not even
print out the board layouts--only send them in to have them made.
There are several free packages...some good, others not so much, that do
the same and are
I might have a dial from a T4X.. same same I think although if I recal
there were some version differences between A B and C twins. But the Tx
looks just like the Rx.
I will check when I get home.
On 12/17/2013 1:34 PM, Bob Loving wrote:
Hi, Lee:
Have you seen the February 2005 QST
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