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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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Old 30th Jul 2017, 4:16 pm   #1
Peter815
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Location: Alkmaar, Netherlands.
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Default Pye Rees Mace marine type 619

Hello friends i have a question about my marine transmitter rees mace marine.
The date of mine transmitter is 1954. In my service book i see that important tubes are : 5b/251m from stc the military numbers are : cv428.
When i was repearing mine transmitter i saw not the 5b/251m tubes inside the transmitter but : 5b/254m and the military number is allso : cv428.

Knows anyone here did pye placed from the factory allso 5b/254m tubes in this transmitter?

If i will look for spare parts tubes what is for me the best option, it is very difficult to find the 251m here in the netherlands so can i replace in the future 254m tubes ?.
Everything is working now very good so i think 254m tubes are the best option.
Did pye placed from the factory 254 tubes?
Greetings from Peter from the netherlands.
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Old 30th Jul 2017, 4:29 pm   #2
Station X
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Default Re: Pye rees mace marine type 619

I believe theCV428 5B/251M and 5B/254M are electrically identical.

You can check here:-

http://www.r-type.org/exhib/aap0004.htm
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