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Analog Squared Paper Discussion Thread. - Page 238

post #3556 of 3565
Since it seems that no-one around here has any real impressions about the Tr-07hp, I've decided to jump the gun on one, and have just placed an order with Shikada San! Will be sure to share impressions once I get my hands on them
post #3557 of 3565

I have a question for tubes specialists:

 

I am looking for a pair of (matched if possible)  Western Electric WE417A driver tubes for my EC445 amp;

 

I found may be a pair, and I see that the vendor mention:   417A WE NOS (439=1954)  best single (Gm=25,000) strongest single tube

 

--> what does  Gm=25,000  mean  ? Is the highest the better ?   do those values need to be very close for the tubes to be considered as "matched" ? or is matched based on something else ? 

 

--> and I guess (439=1954)  mean "produced in 1954" ?

 

 

by the way, if someone can tell me where I can get those rare tubes.... ;) 

post #3558 of 3565

A quick note to say that, after break-in, the TEN + Telefunken diamond base berlin df96 are.... exquise combo :p

 

post #3559 of 3565
They really are aren't they!
post #3560 of 3565
Quote:
Originally Posted by ianmedium View Post

They really are aren't they!

 

Yes, they are :D ;) :p :cool:  and also :eek: :eek: :eek:.  So, thank you again for your advices :wink_face:

post #3561 of 3565
Quote:
Originally Posted by Noobmachine View Post

Any impressions on the new portable TU-07? Curious as to what the transistor only amp from A2P sounds like...

I am very curious to see how this sounds. I saw that this is just coming out so will keep an eye in this. Also have my eye on the TUR-06. Big decisions to be made. If anyone gets there hands on the 07, please post. Trying to weigh if I want to dip my toes in the tube realm...
post #3562 of 3565

This is probably a stupid question but: why are the grills around the tubes removed in the TU05? Is it to reduce the build up of heat? Is it just for looks?

post #3563 of 3565
Quote:
Originally Posted by daveyston23 View Post
 

This is probably a stupid question but: why are the grills around the tubes removed in the TU05? Is it to reduce the build up of heat? Is it just for looks?

 

These don't generate much heat. The glow is actually an LED underneath. However the grill protection is really to prevent anyone knocking and breaking the tube glass.

post #3564 of 3565

Thanks Anak. That makes sense :)

post #3565 of 3565
Hi guys! I am reading (sometimes just scanning) through the pages and I am now at page 132 but time wise I am still at 2013.... tons of tubes info here :-P.

I am using AK240 with IEM and would like to try on tube amp. I am eyeing on TUR-06 but thinking if TU-05 is more fun to play with (and sound wise)?
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