One more 4P1L SE - Page 12

kevinkr · 16th March 2011, 12:33 AM

Quote:

Originally Posted by Wavebourn

Thank you!
I can't figure out how to fix better the plastic mirror between hot toobs and transformers. Also, how to fix a top lid for transformer apartment...

Congratulations Kevin!

I buy my stuff from e-pay sellers from Ukraine and Lithuania. They sell from military warehouses, cheap!

Hi Anatoliy,
Usually I get mine from those ePay sellers but rutubes had some pretty compelling deals, so I grabbed them directly from them. Their site is very nice and they have lots of interesting items - of course there was a run on their stock of 4P1L once I mentioned them. Shipping was very quick.. Russian and Eastern block sellers in general seem to be amongst the most honest/ethical in their customer dealings I have ever dealt with - never a problem. Hope it stays that way.

Wavebourn · 16th March 2011, 06:01 PM

I wonder, how good is adhesion of mirror finish to Lexan: I think about gluing the plastic mirror between hot toobs and transformers, so no bolts would be visible...

Any experience?

hihopes · 16th March 2011, 07:04 PM

Some glues don't like heat. They get brittle and dry and don't hold.

Got my 4p1l's today. Ordered 10 and received an extra one at no cost! They are all Svetlana "winged C".

Wavebourn · 16th March 2011, 07:10 PM

Quote:

Originally Posted by hihopes

They are all Svetlana "winged C".

After WW-II Germans redesigned Telefunken military tubes, and they were produced by Svetlana only. And all of them have "Diamond" stamp, that means military QA accepted, as well as OTK that means Svetlana's own QA accepted them before military QA.

hihopes · 17th March 2011, 01:02 PM

They have these marks. What is in the diamond varies quite a lot. Years are:- 6 of 66, 2 of 78, 1 each of 72,73 and 74. Now I must wait for the sockets and hope they will be O.K.

quikie22 · 17th March 2011, 01:12 PM

Quote:

Originally Posted by Wavebourn

I wonder, how good is adhesion of mirror finish to Lexan: I think about gluing the plastic mirror between hot toobs and transformers, so no bolts would be visible...

Any experience?

I have used Clear silicone glue for such applications. Very good adhesion, heat proof and hardly visible, especially if applied on the inner surface only.

kevinkr · 17th March 2011, 01:58 PM

Quote:

Originally Posted by hihopes

Some glues don't like heat. They get brittle and dry and don't hold.

Got my 4p1l's today. Ordered 10 and received an extra one at no cost! They are all Svetlana "winged C".

I got 4 Svetlana "winged C" and they look very nice.

Wavebourn · 17th March 2011, 01:58 PM

Quote:

Originally Posted by quikie22

I have used Clear silicone glue for such applications. Very good adhesion, heat proof and hardly visible, especially if applied on the inner surface only.

I made it removable, on Velcro, in case repair-ability is needed.

Wavebourn · 17th March 2011, 08:30 PM

A little bit more of bodywork (click the image to expand it):

kevinkr · 17th March 2011, 09:47 PM

Quote:

Originally Posted by Wavebourn

A little bit more of bodywork (click the image to expand it):

Lookin' Good!

16th March 2011, 06:01 PM	#112
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	I wonder, how good is adhesion of mirror finish to Lexan: I think about gluing the plastic mirror between hot toobs and transformers, so no bolts would be visible... Any experience? __________________ If I disappear suddenly, that means I finally created a time machine and pushed wrong button that brought me to Stalin's Russia. In any experiment any result is the result. Even if it is negative.

17th March 2011, 08:30 PM	#119
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	A little bit more of bodywork (click the image to expand it): __________________ If I disappear suddenly, that means I finally created a time machine and pushed wrong button that brought me to Stalin's Russia. In any experiment any result is the result. Even if it is negative.

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16th March 2011, 07:04 PM	#113
hihopes diyAudio Member Join Date: Sep 2004 Location: Cape Town	Some glues don't like heat. They get brittle and dry and don't hold. Got my 4p1l's today. Ordered 10 and received an extra one at no cost! They are all Svetlana "winged C".

17th March 2011, 01:02 PM	#115
hihopes diyAudio Member Join Date: Sep 2004 Location: Cape Town	They have these marks. What is in the diamond varies quite a lot. Years are:- 6 of 66, 2 of 78, 1 each of 72,73 and 74. Now I must wait for the sockets and hope they will be O.K.