Preamp Deal of the Century

Hi Artemus, Raytheprinter had the Conrad Johnson Chardonay combo.Rays a good guy and I'm sure he will help you out. Speaking of tubes,the E.H. gold pin 6SN7s and Sovtek KT66 [Thanks Abe] perform very well in my Chenin. As for the rectifier, the stock Sovtek works very well. I have a half dozen metal base Philips Mini and other early production GZ-34s,Telefunken,Siemens,Mullard and Bugal Boy. They all worked very well in my Chenin.However a $20.00 n.o.s. Bendix 6106 will do nicely also.....

For the record, I too was dragged to "tube rolling" here regarding how much improvement you can benefit from it. In fact, I fired some of my recommendations as well while I am at it. But in all honesty, as I mentioned before trying to report about how good the preamp really is without canging anything but just waiting patiently for it to settle, the stock tubes that Mick shipped are the tubes where the preamp is calibrated. Granted that not two people are alike, it might be wise to let the thing run for a while before constantly buying and replacing the tubes to tailor the sound. So far, the only tubes that I replaced that I am succesful are the two 6C4 tubes in my Chenin

Ooops! Correction! I forgot to add the Sovtek KT66 works wonders for me in the preamp also. It's been a long time since I worry about the tubes on my Chenin. So I thought I still have the Sovtek regulators in there.

Stiltskin, glad to hear that you like the tubes.

Regards

Just a report back on the replacement of my stock regulators (Sovtek 5881). The Sovtek KT66's have settled in and the image wandering I was experiencing is basically gone. From what I've been reading, it would seem to have less to do with the tube type (plenty of endorsements for the Sovtek 5881) and more with condition (alas, I don't have a tester).

Also put in the Bendix 6106 rectifier to replace the Sovtek 5AR4. I think these take many hours to break in, but after about 3 it seems better..clearer, more solid in the low end; the highs seem a little cut off, but again, it's early.

I got it from Tube Depot and the box has a label on it that said: "This tube is a Bendix 6106 / 5Y3GT. Richardson mis-labeled them as 5AR4 years ago. This tube is NOT a 5AR4." Obviously, the tube is labeled 5AR4. Has anybody encontered this?

Best regards,

Hi Ikkyu2, Yes ,the Chenin is an incredibly good preamp for the money. The phono stage is the icing on the cake so to speak! I like what the Bendix 6106 does in the lower midrange on down,I have not experienced any cut off in the upper treble from this tube.From new the Bendix takes along time to burn in. Some members here have had problems using the 6106.Test done on my 6106 shows strong values and both sides match the same. A discoloration formed on the getter spot on my Bendix, also on a couple of my metal base GZ-34s. This is normal. However the stock rectifier was in use as much as the others. It does not have any coloration on the getter spot at all. Hmm.

Ikkyu2:

the labelling on your 6106 is correct. i believe the main difference between the 5AR4 and 5Y3GT (6106) is that the 6106 has a longer rise time than the 5AR4. the 6106 rises considerably slower than the 5AR4 as i'm sure you've noticed. for all intents and purposes though, the 6106 is interchangeable with the 5AR4 in the supratek circuit. check this thread for more discussion about the 6106 in suprateks:

Supratek Tubes and Tube Swappin' for Everybody