I have been reading alot about whether or not to isolate the Power transformer from the chassis. There seems to be a difference in opinions on the subject, so...
I raise the transformer on Kenwood KT-7500 tuners as a standard during the mod process. It usually drops the AC voltage standing on the chassis a few volts....
Do you ground the transformer frame to the star ground after raising it or do you keep it totally isolated. Also, do you orient the AC in to minimize the stray...
Jim, This is a newby question but I'll ask it anyway because I always wondered about this. When you say you electrically isolate the transformer do you mean...
On the Kenwood KT-7500s. About 30 of them now and I'm tired of doing them. The trannie is totally isolated (physically and electrically ) and the two AC input...
I was lucky enough to shop at the same mom and pop store as Camille and they HAD 3/4 inch rubber stand offs with a screw coming from one end and a nut embedded...
If those rubber standoffs work, I would suggest drilling the transformer mounting holes larger and use rubber gromments. That way the bolts are still through ...
-Hi Roger, Jim and gang, You can get those rubber sandwich mounts Jim describes from McMaster- Carr. # 9376K142. These are 5/8" dia. X 1/2" high with # 8-32...
Hi: I just about came up out of my chair upon seeing the ampex preamp posed outside in someone's garden! I have one just like it; having used it since around...
Yep, I put to photo up because I have it for sell on eBay. My eBay pics make it look bluish. So when someone asked, I took it outside for a better photo. It...
Jim: On the inside of one of the cover plates is a tube chart. It shows a 12AU7 in the output position; all others are Xs. The final stage as you now doubt...
No, thanks for helping me out. The tube chart is no more but it was easy to trace back and find the output tube. I'll draw a chart for the new owner, if it...
I'm looking for upgrade information for the Crown IC150A and the DC300A units. Any info on substitute opamps and caps would be appreciated along with more...
Hi Jim, How about some info on the cover photo? My guess is a DIY line amp placed in a "used to be sumpin else" chassis. I like the long shaft/short leads...
Good morning Ray, The 'exposed' cover girl is one of my versions of a Bottlehead Foreplay preamp (linestage). I've done four. I never liked the looks or...
Where can I get Blackgate caps and Burr Brown OPA604 and OPA627 op amps at reasonable prices. Why do I need fast recovery diodes in the power supply? What...
We have recently acquired some 'malay straights' tropics style furniture, a 3-seater lounge, and one of two chairs (? later!), low black lacquer bent timber...
I'm new to this forum. I'm working on making my home recording studio in 5.1 surround. In my research I was looking for a bass management unit but those are so...
If you can use non-balanced equipment look at outlaw audios ICBM-it does what you want and they're not very expensive new or used Robert ... From: Rodrigue...
I need balance. So far I've check M&K, Martinsound, ICBM and Audient. They are all arround 1000$ and they have feature that I don't need like level trim and...
Hello, I'm new here, and just started to get into FM tuners. I picked up an older SS Lafeyette LT425T with 4 FM gangs and 3 AM gangs to see if I could work on...
Hi Robert, I've done of few similar projects I would strongly suggest that you get the schematic if not the entire service manual. Changing parts or any...
Paul, Thank you for the response and encouragement. I'm diligently looking for a schematic. Have posted a few queries on boards and e- mail a few "Manual"...
Scott Nixon DAC with "homemade" chassis from a kit. Here is a nice kit project done by an email pal who lives out of state. His comments are quoted below. I've...
... <snip> ... Robert - Sorry to have gotten your hopes up. I listed the tuner in the On-Deck Circle a few days ago based solely on a comment by you or ...
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