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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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2nd Oct 2012, 9:19 pm | #1 |
Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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KW2000B valves.
Hello,
Just have this tranceiver: Two tubes are very strange to me. x13 x12 One says Brookes 456.46 8/71, the other is partly readable Brookes 64 0/70. What is the purpose of these tubes? All info is welcome about this trx. Regards carlos Last edited by Mike Phelan; 3rd Oct 2012 at 9:18 am. Reason: Correct typos. |
2nd Oct 2012, 10:16 pm | #2 |
Rest in Peace
Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,872
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Re: kw2000 b tubes
They are quartz crystals? Probably carrier oscillators.
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2nd Oct 2012, 10:19 pm | #3 |
Pentode
Join Date: May 2005
Location: Chelmsford, Essex, UK.
Posts: 150
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Re: kw2000 b tubes
I don't know much about KW's but I do know Brookes made quartz crystals - abbreviated as Xtal - which these sound like especially as you refer to X12 & X13 which again would indicate (X)tal to me. Last clue is the marking 456.46 - this is the frequency in KHz and 8/71 will be August 1971. Lots of xtals were made in glass holders the same size as B7G. PLEASE don't apply any high voltage to these !
John G3VUO |
2nd Oct 2012, 10:59 pm | #4 |
Retired Dormant Member
Join Date: May 2010
Location: Kidderminster
Posts: 16
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Re: kw2000 b tubes
Probably best you download a manual before applying power to the set. The items are the USB and LSB carrier crystals as already stated.
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3rd Oct 2012, 11:59 am | #5 |
Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Re: KW2000B valves.
thanks to all,
the trx has been fired up already with variac, its working but need a major cleaning and revision, the dial is slipping, so if anyane has experience with this dial................ regards carlos |
3rd Oct 2012, 5:41 pm | #6 |
Pentode
Join Date: May 2011
Location: Enniskillen, Fermanagh, UK.
Posts: 188
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Re: KW2000B valves.
lots of help on, Yahoo group KW_Radios Cliff.
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3rd Oct 2012, 7:32 pm | #7 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,951
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Re: KW2000B valves.
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5th Oct 2012, 3:51 pm | #8 |
Pentode
Join Date: Apr 2007
Location: Sint-eloois-winkel 8880, Belgium.
Posts: 168
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Re: KW2000B valves.
hello, this guy sells jackson balldrives,
i need this for the kw2000 tranceiver Mainline Electronics 192 Little Glen Road Glen Parva Leicester LE2 9TT UK http://www.mainlinegroup.co.uk/jacksonbrothers/4511.htm but email is bouncing back, still in buisiness? THANKS CARLOS |
5th Oct 2012, 4:06 pm | #9 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,526
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Re: KW2000B valves.
No idea, but it might be worth a phone call:
192 Little Glen Road Leicester England LE2 9TT sales@mainlinegroup.co.uk 0116 278 0980 so from abroad.... +44 116 278 0980
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