开云体育

In light of the discussion regarding the shipment of transmitting tubes vs the apes at the shipping companies, I have a pair of Eimac 3-500Z's available for pickup only in the

Hi Jim, I really appreciate your help.? I was loking at the wrong PDF and the ALC board pic was so blurry I didn't see the label.? I was able to get the voltage down to around 0.5 VDC on a

Look for the High Pass Filter Module schematic, Fig. 2-28. There is a list of illustrations in the front of the SM, page V. Page 2-80 is correct for the 1978 manual that I am looking at. I am aware

Hi Jim, Page 2-80 is a blank "Notes" page in my original Service manual notebook. Dale W4OP

The plate structures in all of these type tubes are fairly massive.? It was probably a side acceleration that actually moved it but I'm thinking that the plate "pin" might not be bent.? The plate

Yup..I forgot to add that to the message! Thanks Jim! Joe- W7RKN

/g/DRAKE-RADIO/message/76076 73 -Jim NU0C "Dale Parfitt" <PARINC1@...> wrote:

The service manual appears to skip over the ALC board schematic- or at least I am unable to find it. Anyone enlighten me? Tnx, Dale W4OP

You must ship with signature required. Otherwise they just drop the package on your porch and run. 73 -Jim NU0C "Joe - W7RKN" <w7rkn.7@...> wrote: -- 73 -Jim NU0C

The ALC board is part of the High Pass Filter module. You will find the schematic on page 2-80. The inputs are clearly labeled. ALC photo is page 2-73. There is a very early ALC board that is a little

Shock sensors on and in the shipment would have removed any and all resistance to the claim by FedEx. Anything of value I ship, has shock sensors, inside and outside the box/shipping container. To

I am attempying to do the wattmeter null adjustment.? The service manual that I downloded from the files section says to connect a VTVM to the refected power input on the ALC board (see section

As a side note, insurance claims via FedEx for damaged tubes may or may not be honored. ? Why? ?With an amp and some tubes (packed separately, double boxed, well packed) that I sent out, there was

<This is a common problem of rough handling.? That is why it was ALWAYS said to never lay the Eimac tubes on the side, always standing up and to treat them like fine crystal. <Vince N8MQV Tell that

The Drake Technical Net met at 21:00z on Sunday, 11 February 2024 There were 39 stations checking in with us, today. The Drake radios used included the following: The net operated under fairly good

If you plan on doing CW you may want to also take a look at the article here by Floyd K8AC: http://www.wb4hfn.com/DRAKE/DrakeArticles/TR7_Key_Clicks.pdf 73 -Jim NU0C "Bill NZ0T" <nz0tham@...>

Mark, "atlasstuff" <g4fph@...> wrote: The +24 supplies a boost voltage to the PLL for faster lock. The -5 back-biases the PIN diodes on the IF filter board and typically measures arounf -3 to

After fining the much better PDF copy of the sevice manual in the files here I have a plan to try tomorrow. 1.? Very low sidetone volume:? Check R1152 a 330 ohm on the IF/audio board to see if it's

@Tom: Thanks for those fixes. I will remember to go grab the updated version. Coming to the radio with zero practical experience of what was inside, just finding where to put the probe was a real

I have a TR7 transmit exciter board for sale that be of use to someone. I purchased it from K3ICH some time ago but no longer need it as I am selling the TR7, serial 4566. If interested please contact