[Milsurplus] The Saga of the Drake 2B continues

[Peter Gottlieb]

I am fortunate that my friends who have me help me on their radios are competent 
with repairs and also know their limits.  I have seen repairs come back from 
professional shops where I think the techs who worked on the gear should 
definitely find a new line of work.

Peter
KB2VTL


On 2/11/2019 8:50 PM, n2lxm at juno.com wrote:
> Good Evening All,
>
>
>          Back in January I was working with a good friend on his basket
> case 2B. We had a few issues (well a lot really) to deal with but got the
> Old Girl receiving signals. We were both able to get together on Sunday
> do some more work on it. Well the weird stuff is still happening. We
> could receive good signals on the 40 and 80 meter bands, but the S-meter,
> AVC, and Noise Limiter were still not working well. So out came the
> Voltage / resistive chart. When we got to the 6U8 ( 1st Mixer, 2nd mixer,
> VFO) we found - 130 VDC on pin 6. How can a grid have -130 VDC on it. We
> used three different (VTVM, VOM, DVM) meters to check it. So out it came,
> found a NOS one and put in, now we were have +.495 on the pin, not
> perfect but close enough. Reset the AVC voltage as per the manual,
> S-meter now working better. Now on to a damaged IF can. Pulled the can
> off the coil, it was then apparent that the former owner had been inside.
> We were able to dislodged the broken core, fix the top of the paper tube,
> straighten out the bent can top. Now to find a tuning slug that would fit
> and do the job. Well luck would have it, while looking through my stash
> of IF transformers. I came across a small plastic bag, Manufactured by
> Neida Electronic Mfg, IL-108. It was a 20pc iron core slug kit, with a
> whooping price of $1.00 tagged on it. So we found one that was the right
> diameter and put it all back together. Did a quick IF alinement. But as
> we were finishing up on that the bands went dead. So we turned the old
> girl off and called it a night. So when we get back together, it will on
> to a full alignment and the noise limiter. Been interesting doing this
> repair. Makes me want to be sure that anything I do on old radios is done
> right. So the next owner world have to deal with this type of stuff. Also
> makes me realize some people should not be aloud to Handel a soldering
> iron. Will report more as we go forward on this project.
>
>
>                                                      Jeff N2LXM
>                                            Amateur Radio Operator
>                                                        American
>                                                          Patriot
>                                       Proud Father of Two US Marines
>
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