>
>>Hi All,
>> I have a question on using a Eimac 3-500Z with a 3-500
>>from China. I am going to put them into a Kenwood TL-922.
>>Would I run into any problems doing this?
>
>
>Hi Boyd,
>I just made a visit to RF Parts in San Marcos this past wednesday. I will be
>procuring a new 3-500Z but I am still not sure which brand. The chinese
>tubes labeled "RF Parts Co." have an unconditional warantee for the first
>year and pro-rated the next year. New price is $120 each.
>
>They also have Amperex which are made in France. They sell for $190 per
>bottle and have a 90 day unconditional warantee.
>
>They also carry NOS Eimac 3-500s for $220 each. I do not remember what the
>warantee was.
>
? A friend of mine tried one Tritons and the anode-cooler spotwelds
reportedly weakened and broke -- just like later production Varian/Eimac
3-500Zs. The Chinese tubes I inspected had good spotwelds.
>I asked the salesman which brand had the lowest return rate and he said by a
>wide margin the Amperex. He strongly recommended if I was to buy new then do
>NOT buy their own brand or the Eimac--go with the Amperex.
? One of the Amperex tubes in my SB-220 was made in 1976. It still puts
out full suds. However, the bias requirement is 0v.
- later, Lane
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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