[TK16]

Siemens CCa grey shield $380 OBO.
https://www.ebay.com/itm/siemens-CCa-1-matched-pair-brand-new/322990029850

 

[TK16]

Not a pretty looking WE 396A pair, but square getter, good seller. $49 opening bid or $99 BIN.
https://www.ebay.com/itm/M-Pair-Wes...e-Square-Getter-Tubes-NOS-Values/273021436016

 

[billerb1]

Nice find TK

 

[TK16]

Wish me luck!

 

[ThurstonX]

Not a pretty looking WE 396A pair, but square getter, good seller. $49 opening bid or $99 BIN.
https://www.ebay.com/itm/M-Pair-Wes...e-Square-Getter-Tubes-NOS-Values/273021436016

They'll probably go beyond what I'm willing to pay, but I don't see a Buy It Now.

 

[TK16]

Somebody bid.

 

[ThurstonX]

Somebody bid.

LOL, is that how those work? I feel like such an eBay noob

 

[TK16]

I think so there was a BIN at $99 with 0 bids bro.

 

[billerb1]

There was.

 

[gmahler2u]

Another luck stoke upon me today, got another pair of Tele E188cc...this time even sweeter deal!! $189.

Good day!

 

[billerb1]

Another luck stoke upon me today, got another pair of Tele E188cc...this time even sweeter deal!! $189.

Good day!

Check Phantaminum for a pulse.

 

[AuditoryCanvas]

Speaking of rare tubes, if I was in the US, and was feeling adventurous I would totally give these a shot https://www.ebay.com/itm/282798943734 and let us know

They arrived today. Tested almost perfect match on gm and plate current.

Unfortunately, after 5 mins warm up, one of them gets so microphonic it creates a feedback howl, which just ends up a feedback loop, so it basically unusable

Thankfully the seller has been really cool about figuring something out.

I think it’s beyond rescuing with a damper, I’ve never heard a tube go so microphonic.

 

[kolkoo]

They arrived today. Tested almost perfect match on gm and plate current.

Unfortunately, after 5 mins warm up, one of them gets so microphonic it creates a feedback howl, which just ends up a feedback loop, so it basically unusable

Thankfully the seller has been really cool about figuring something out.

I think it’s beyond rescuing with a damper, I’ve never heard a tube go so microphonic.

Try burning it in the amp 24hours on high gain see if that fixes, I'm fairly confident it might

Edit: Feel free to unplug the headphones during that time.

P.S. What tester are you using?

 

[AuditoryCanvas]

Try burning it in the amp 24hours on high gain see if that fixes, I'm fairly confident it might

Edit: Feel free to unplug the headphones during that time.

P.S. What tester are you using?

Hickok 539c, with a few panel meters added, one for plate current, the others for accurate line voltage and bias setting. Also have a Hickok 752.

I'll have to unplug the headphones, or they'll get shredded as the feedback loop escalates. Are you sure the loop isn't going to damage the amp? it continually gets louder unless I pull the power.

Wouldn't it make more sense to put it through its paces on the tester for a while at 150v plate?

 

[Phantaminum]

Check Phantaminum for a pulse.

This is me right now: