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Re: [Amps] SB220 SICK...RELAY

To: "Bill VanAlstyne W5WVO" <w5wvo@cybermesa.net>, <amps@contesting.com>
Subject: Re: [Amps] SB220 SICK...RELAY
From: "Carl" <km1h@jeremy.mv.com>
Date: Thu, 8 Apr 2010 21:02:50 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Ive been dealing with him for over 20 years, never been dissapointed.

Carl
KM1H


----- Original Message ----- 
From: "Bill VanAlstyne W5WVO" <w5wvo@cybermesa.net>
To: <amps@contesting.com>
Sent: Thursday, April 08, 2010 7:23 PM
Subject: Re: [Amps] SB220 SICK...RELAY


> Allen is a great guy. He phoned me personally to discuss which vac relay
> best fitted my needs before shipping anything, and as a result I was able 
> to
> get a couple of Kilovac HC-1s that he had just gotten in, used but in
> like-new condition. Very satisfied with MGS, I recommend them.
>
> Bill W5WVO
>
> --------------------------------------------------
> From: "Pete Smith" <n4zr@contesting.com>
> Sent: Thursday, April 08, 2010 3:35 PM
> To: <amps@contesting.com>
> Subject: Re: [Amps] SB220 SICK...RELAY
>
>> However, Allen Bond at www.mgs4u.com sells a wide range of vacuum relays
>> and other high power stuff, both new and from surplus for very
>> reasonable prices, and he stands behind his goods 100 percent.  No
>> connection, just a satisfied customer.
>>
>> 73, Pete N4ZR
>>
>> The World Contest Station Database, updated daily at
>> www.conteststations.com
>> The Reverse Beacon Network at http://reversebeacon.net, blog at
>> reversebeacon.blogspot.com
>>
>>
>> On 4/8/2010 8:47 AM, TexasRF@aol.com wrote:
>>> Roger and all, re: Chinese vacuum relays:
>>>
>>> I have purchased a couple of these from Gigavac in the last year. I have
>>> to
>>>   say that they work great and look great. I would buy more as needed
>>> without  hesitation.
>>>
>>> If you let them know it for ham radio use, you get a big discount in
>>> price.
>>>   The last one I purchased was rated for about 20kv and 25 A cost about
>>> $150. I  have seen old (and leaky vacuum) relays on Ebay for more $$.
>>>
>>> You can get exactly what you need, hot switch, not hot switch, mounting
>>> arrangement, coil voltage, n/o, n/c, double throw so no need to 
>>> improvise
>>> the
>>> circuit to fit what you find surplus or used. The sales rep will find 
>>> the
>>> needed  version in a flash and take your credit card order in two
>>> flashes.
>>>
>>> 73,
>>> Gerald K5GW
>>>
>>>
>>>
>>>
>>> In a message dated 4/7/2010 9:28:30 P.M. Central Daylight Time,
>>> sub1@rogerhalstead.com writes:
>>>
>>>
>>>
>>> JayKay wrote:
>>>
>>>> Thanks to all for your inputs. I am going  to try cleaning the relay
>>>>
>>> contacts and watch alignment, etc.
>>>
>>>>   If I can't get it going (contacts beyond repair), I would like to
>>>>
>>> replace the  relay but a quick Google shows the KA-3702 relay by PB
>>> doesn't exist.
>>>
>>>
>>>>
>>>>
>>> Go to Mouser and try to find a how ever many pole  relay with the same
>>> ratings and pin out. You might not be able to find a  direct pin for pin
>>> replacement, but that's better than having to rig up  something.  If
>>> you're a CW op this would be a good opportunity to go  QSK. However It's
>>> really difficult to find any suitable US made   vacuum relays any more.
>>> Word is that many now say "made in China".   I'd probably go for some of
>>> the Russian surplus vacuum  relays.
>>>
>>> 73
>>>
>>> Roger (K8RI)
>>>
>>>> My thinking is to grab the  120VDC present in the rig and regulate it
>>>>
>>> down to 5VDC or 12VDC (once I know  the resistance of the coil) and then
>>> get a
>>> 10 amp 3PDT relay. It will also  make it easier to interface with newer
>>> rigs
>>> that don't like 120V switched to  ground through their internal relays.
>>>
>>>> I could use a series  resistor (with the R of the coil) to step it down
>>>>
>>> but I don't want to hot  switch 120V (at T = 0) to any external relays
>>>
>>>> 1) Anyone have  the KA-3702 relay or a source?
>>>>
>>>> 2) Additional  comments?
>>>>
>>>> 3) Relay recommendations?
>>>>
>>>>   Thanks
>>>>
>>>> Jay
>>>>
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>>>>
>>>>
>>>>
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>
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