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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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15th Feb 2020, 6:46 pm | #1 |
Triode
Join Date: Oct 2013
Location: Leicester, Leicestershire, UK.
Posts: 24
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WS No 19 mk111 Canadian
Hi
Although my 19 set works very well the meter when switched to AVC now takes about 5 minutes to show a reading. Any ideas on what to look for? Jon |
16th Feb 2020, 5:16 pm | #2 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,935
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Re: WS No 19 mk111 Canadian
Anything from a noisy switch to a res gone high or a cap on AVC line and I presume all other meter functions are fine.
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G8JET BVWS Archivist and Member V.M.A.R.S |
16th Feb 2020, 8:29 pm | #3 |
Triode
Join Date: Oct 2013
Location: Leicester, Leicestershire, UK.
Posts: 24
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Re: WS No 19 mk111 Canadian
Hi
Checking the meter again today reveals that the other switched positions have no readings although the AVC eventually does. Jon |
16th Feb 2020, 8:37 pm | #4 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,935
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Re: WS No 19 mk111 Canadian
Could be sticky meter, try a tap on it and see if it is indeed sticking.
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G8JET BVWS Archivist and Member V.M.A.R.S |
17th Feb 2020, 6:10 pm | #5 |
Pentode
Join Date: Nov 2015
Location: Maidstone, Kent, UK.
Posts: 131
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Re: WS No 19 mk111 Canadian
Just an observation, if its like the MK11 both sides of the meter are switched. The negative side relies on one wafer for all but the Ae position. If nothing else appears wrong perhaps some switch cleaner in this area might help?
Orakle42 |
18th Feb 2020, 8:32 pm | #6 |
Triode
Join Date: Oct 2013
Location: Leicester, Leicestershire, UK.
Posts: 24
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Re: WS No 19 mk111 Canadian
Hi
Replacing an open circuit 1.2m r on the meter panel has restored the meter operations. Jon |
19th Feb 2020, 7:29 pm | #7 |
Dekatron
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 8,935
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Re: WS No 19 mk111 Canadian
Nice to be right!
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G8JET BVWS Archivist and Member V.M.A.R.S |