According to Eimac Eng Dept Your to Treat the YC156 As A 8877 except with 20
KW anode That is how it was stated to me By Them.
N9IWW
--------------------------------------------------
From: "Jim Barber" <audioguy@charter.net>
Sent: Thursday, September 30, 2010 3:16 PM
To: "DAVE WHITE" <mausoptik@btinternet.com>
Cc: "AMPS" <amps@contesting.com>
Subject: Re: [Amps] Any experiences with "powergridtube"? (YC156 hunt)
> I'm not an expert on them, but all indications are that they're quite
> stable in multiband designs given reasonable care in layout and
> construction. I haven't as yet seen one require a parasitic suppressor,
> for whatever that's worth.
>
> 73,
> Jim, N7CXI
>
> On 9/30/2010 12:00 PM, DAVE WHITE wrote:
>> I've not come across that seller before. Does he mean $550 per tube?
>> Also he's stated that you may not get the one in the advertisement, so
>> although the picture is of a new looking one, you may get a blackened
>> and half-melted dud in the worst case scenario - though I'd hope to have
>> a bit more faith in human nature than that...
>>
>> Just Goolging to find out a bit more about that tube, I saw this
>> http://www.directivesystems.com/YC156.htm
>>
>> ...which seems like a nice, neat bit of construction. 19dB gain from a
>> triode? Strewth. Would that be a bit of a beast to hold down in a
>> multiband amp?
>>
>> Price-wise, since I just paid GBP200 (about $280) each for a couple of
>> new though rather old stock Eimac 3CX3000F7s I think $550 may be a
>> little steep, though I've never bought a YC156 so don't really know.
>> Still, it looks like one hell of a tube for the money
>>
>> Hope this helps.
>>
>> Oh, and "flame wars" ?? on this group? Ahem <cough> surely not....
>>
>> Dave G0OIL
>>
>> --- On *Thu, 30/9/10, Jim Barber /<audioguy@charter.net>/* wrote:
>>
>>
>> From: Jim Barber <audioguy@charter.net>
>> Subject: [Amps] Any experiences with "powergridtube"? (YC156 hunt)
>> To: "AMPS" <amps@contesting.com>
>> Date: Thursday, 30 September, 2010, 18:14
>>
>> I'm looking to buy a couple of YC156's for a project, either rebuilt
>> or full-output pulls.
>>
>> There's a current eBay auction by "powergridtube" that lists 5 tubes
>> "cleaned and laboratory tested to full output", although no specific
>> guarantee is given. Any experiences with this guy? (replies off-list
>> ok
>> to save feelings and avoid flame wars)
>>
>>
>> http://cgi.ebay.com/Tested-Eimac-YC156A-MRI-RF-Tube-/290481794913?pt=LH_DefaultDomain_0&hash=item43a2106f61
>>
>> <http://cgi.ebay.com/Tested-Eimac-YC156A-MRI-RF-Tube-/290481794913?pt=LH_DefaultDomain_0&hash=item43a2106f61>
>>
>> Thanks,
>> Jim, N7CXI
>>
>>
>>
>>
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