[rlee8394]

Found the proper schematic at the FMTunersPhotosand4Sale group.

Ron

[rlee8394]

So, I tested all of the tubes with my TV7D/U. All were WAY below minimum. I had strong 6GH8A and 12AT7A tubes on hand and replaced those. One of the 6GH8As had a dead triode section which is why the "Hush" function wouldn't work. Now it works and I adjusted the level without any trouble. I have an email in to Jim McShane to see if he has the 6AU6, 6BN6, and 6BS8 tubes. While I had it on the bench, I made some mods. I replaced the output caps with matched polypropylene film units (6.8uf), replaced the output jacks with new gold plated RCA jacks, replaced the two rectifiers with HER108 ultra fast units, and added extra capacitance to the power supply. Added a 1000uf/250v to the fist section of the quad cap. This brought ripple down from 4.0 v to 700mv. Then I added a 220uf/200v cap to the second section which brought ripple down from 140mv to 14 mv. Once I get the new tubes, I'll send it off to Harrisburg Radio Labs for a full alignment.

Stay tuned!

Ron

[this_is_vv]

waiting for it...

[SteveFord]

I've had an old Sherwood tuner going all afternoon as I'm stuck waiting for the electrician or someone like him.
I wish I could find a CD player that sounded as good as this tuner does.

[kbuzz3]

I've had an old Sherwood tuner going all afternoon as I'm stuck waiting for the electrician or someone like him.
I wish I could find AN FM STATION that sounded as good as this tuner does.

[SteveFord]

WTMD in Towsend, MD sounds pretty good. 
I guess all of that fund raising for the new studio was put to good use.

[rlee8394]

Not to mention WBJC for classical; and not to be confused with WTMD, there's WMTD from Emittsburg, Md. Pretty good college station, Mount Saint Marys. "High on the mountain, low on the dial" as they say.

Ron

[SteveFord]

Well, did you get it going? 

[rlee8394]

Yeah, sounds great. I got new tubes from Jim McShane. Just need to send it off for alignment. I've been busy upgrading a Sansui TU-717 that I got on ebay. Added F connector, new gold phono jacks, HER108 ultrafast 1A 1000V rectifiers, new filter adder board with new ceramic filters from Bill Ammons. Making an inventory of caps to replace before sending it out for alignment.

Ron

[SteveFord]

If you feel like taking a ride up to PA I can drop the tuner off at Harrisburg Radio Lab and then you can swing by and pick it back up at my house when they're done with it.  That way there's no possible shipping damage and they're only a mile or two out of my way home from work so it's no big deal.
Another thought might be to send AVNerdguy a PM and see if he's done setting up after his move.
I know he's all excited about having finally gotten the equipment needed to align tuners.

[veloceracing]

FWIW, I've been collecting what I term "Big Knob" 70's Japanese tuners.  Having owned a slew of Magnum Dynalabs (up tot he 108T), a few tubed McIntosh's and Scott's, I have not enjoyed components as much as some of the classic big name tuners like the TU-9900, KT-917 and CT-7000.  That was from a time where competition to produce the best was in full force.  But there are so many other fantastic tuners from that era: the TU-717, Kenwood's stellar KT-8300 (and -7300, for that matter) as well as Yamaha's late entry, the T-2, which looks as if it was built by Pass Labs: the case is made from individual think sheets of aluminum.

I subscribe to the adage "If you own a tuner, you own a million-dollar record collection".  Here in Portland we're fortunate to have two incredible stations: KMHD, a Jazz station and KQAC, a classical station.  Two is better than one, which is better than none, I guess.