Re: [Amps] Machlett 3-500z

[Alek Petkovic <vk6apk@bigpond.com>]

Yep. There is nothing wrong with any of the 3-500ZG tubes. If you buy 
enough of them from the factory, they'll stamp whatever brand you like 
on them.
They are as good as anyone else has ever made, with perhaps one proviso. 
It is strongly advised to use them and get the anodes red, regularly.
Don't leave them unused in the amp or on the shelf. They'll go gassy and 
create big problems.
Keep 'em gettered and they'll serve you well.

73, Alek.
VK6APK

On 25/07/2017 7:04 AM, Terry Hart wrote:
> Thanks Dennis. That's exactly the type of feedback I was looking for.  Any 
> further feedback on personal experiences would be very helpful.
> Best, Terry G3VFO
>    ----- Original Message -----
>    From: Dennis Kippa
>    To: Terry Hart
>    Sent: Monday, July 24, 2017 5:36 PM
>    Subject: Re: [Amps] Machlett 3-500z
>
>
>    I purchased 2 3-500gz from Mississippi and have had them in service for 5 
> months.  I drive the tubes with 90  watts from a Flex 3000 and I get 1500 out.  
> It will do MORE.  I am happy with the purchase and the performance.
>
>
>
>    On Sun, Jul 23, 2017 at 2:08 PM, Terry Hart<terry.hart@btinternet.com>  
> wrote:
>
>      I  see from their website that RF parts will supply 3-500s only to 
> customers within the CONUS area. That leaves the rest of us having to look 
> elsewhere, so it would be useful to hear of the experiences, good or bad, of 
> those who have bought these Machlett tubes 'direct'.
>
>      Terry, G3VFO
>
>
>      ----- Original Message ----- From: "Roger (K8RI)"<k8ri@rogerhalstead.com>
>      To:<amps@contesting.com>
>      Sent: Friday, July 21, 2017 10:33 AM
>      Subject: Re: [Amps] Machlett 3-500z
>
>
>
>
>        Warren,  that price difference sounds about correct to me.  RFParts 
> tests and I believe, guarantees their tubes which are likely the same brand 
> which they most likely purchase enough to receive a quantity discount.
>
>        Purchasing direct often saves money. Sometimes it can be substantial because you 
> are assuming the risk while the US reseller has the cost of the time and paperwork 
> invested in testing tubes they may, or may not be able to return. With some NOS tubes 
> there is substantial risk from "infant mortality". You are often safer paying 
> more for the new tubes than less for the older NOS versions where both are available.  
> Direct Vs through a US retailer?  You are playing the odds and taking on the risk 
> yourself Research the viability of the tubes before making your decision.  Price 
> differentials and risk can vary considerably.
>
>        73, Roger (K8RI)
>
>
>
>        On 7/20/2017 Thursday 10:46 PM, Warren Volz wrote:
>
>          Tonight while searching for 3-500z on eBay I discovered this listing: 
> https://www.ebay.com/itm/222576972694
>
>          I know all 'new' tubes are made in China and the rfparts version seems 
> to get the best reviews. Any idea what the deal is with these Machlett 'factory 
> direct' models? They are $90 less than rfparts. Are they the rejects from 
> elsewhere or the manufacturer trying to undercut the market?
>
>          -Warren KD5YPH
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