[R-390] Thrifty Tubes

[Perry Sandeen]

Yo Bubba Dudes!,
There are two companies in FL that have great deals on quite lessor-known but tube manual listed substitutes.
They are ABCtubes and ESRC1.  They have very similar offering and maybe the same company using two different names.  These are all NOS and come in sleeve's of 5.
I purchased a large quantity in the past.  All the boxes were clean, showed no ware and looked brand new 

The tube are $1 each BUT there is a 10 tube minimum.  I'm not quite sure if it means 10 of one type or 10 total, but I suspect at these prices it will be 10 of each which is still a heck of a deal.  All these tube have higher micro-mho values than what they are replacing which can lead to better performance. As it has been said: YMMV

The substitute  for the 6C4 is a 6AB4.  There are two subs for the 6BE6 mixer: 6BY6 (which I purchased) and the 6CS6.  The 6BA6 sub is the 6JH6 which has the same gain as a 6BZ6.
Now the dollar list on both sites IIRC are slightly different and most tubes on the list will probably be there forever as they are extremely oddball to say the least.
Regards,
Perrier