The Rig Doctor

The Rig Doctor Electronic equipment Repairs, Modifications, Maintenance, Servicing and Sales.

19/11/2023

Apologies to anyone who has been trying to get hold of me .
I'm not feeling very good at the moment.
I'll try and back to you next week at some point.
Thanks in advance for being understanding.

The more I think a quad set of MRF448's with 250w each at 50v would be a stomper of a box. What's everybody think?
01/10/2023

The more I think a quad set of MRF448's with 250w each at 50v would be a stomper of a box. What's everybody think?

Alan MarlandNo access to Facebook Message's for whatever reason,Cheers Facebook.I'm working to get this done for you.
29/09/2023

Alan Marland
No access to Facebook Message's for whatever reason,
Cheers Facebook.

I'm working to get this done for you.

16/09/2023

Hundreds of CB\HAM Radio, Valve Amp, Transistor Amp, Antenna guides, Service manuals, Schematics, Modification info and Alignments freshly uploaded for The Rig Doctor Members to download for free

14/09/2023

Alinco DJ-X11 (T,E,K)
Service Manual
& Schematics
In The Rig Doctor Surgery files section

On The BenchSOMMERKAMP FT-77(A bit different )Issue with RX
13/09/2023

On The Bench
SOMMERKAMP FT-77
(A bit different )
Issue with RX

A few of these popping up recently.A totally deaf as a post sample on the benchNo RX, Terrible TX, Lots of not so great ...
12/09/2023

A few of these popping up recently.

A totally deaf as a post sample on the bench

No RX, Terrible TX, Lots of not so great looking capacitors, all original 10v capacitors still present.......................xx.......................xx.......................
Replaced all 10v caps and any others that were located around our IF amp transistors and AGC section, in the hope of waking in the receiver.

No luck with that.
With a good strong 7.8Mhz LO signal into the first IF, Positive Carrier reinserted, good gain at 2nd and 3rd IF amps, TR10 (METER/AGC AMP) fed the signal to ground.

Replaced TR10
RX Sensitivity mod
Clarifier unlocked
Alignment

Done!

09/09/2023

Icom IC-7000
Main board pcb, under the logic unit.
So hot the tiny components have been floating away.
There has to be a point where the component size's in modern electronics can't be made any smaller!.
I have great eyesight, very fine tools and a microscope, it's clear to see that these parts are made to be replaced and not repaired.
That ceramic tool is the smallest I've got and has a width of 1.6mm

Icom IC-7000, The deeper in I go the more apparent it becomes that this radio has been very very hot.
09/09/2023

Icom IC-7000,
The deeper in I go the more apparent it becomes that this radio has been very very hot.

09/09/2023

On The Bench
ICOM IC-7000
Output Power Low on SSB Issue

(Customer in shock says) "How much?" (Me) "£ #@*.00"(Customer)"It's only putting 1 radio inside another"
05/09/2023

(Customer in shock says)
"How much?"

(Me)
"£ #@*.00"

(Customer)
"It's only putting 1 radio inside another"

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Mansfield

Telephone

+447415820646

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