The Secret Society of Lathe Trolls

More stuff for tonight: One thing I wanted to mention was that I accidentally touched the insulation on one of the wires with my soldering iron and burned a spot. This was not one of the HV wires, but it was hard enough to get back in there after the fact to try to replace it, and I didn't want to j...

You have an Ampex MM1000? Woohoo! I do! Pretty cool that you caught that. It's briefly mentioned on this thread page: Scroll down 3/4 of the page: https://www.lathetrolls.com/viewtopic.php?f=15&t=5462 And I did a video on cleaning the switches here on you tube: https://www.youtube.com/watch?v=hcIu-...

Oops. Looks like there was an error in the last post. Here is the correct photo showing a possible location for the turret board near the transformer: IMG_6295.JPG With those two photos you are starting to see a few things that I want to hold off discussing until later. So let me continue with some ...

Tonight, I'll start on some of the capacitor replacement back fill... First, I ordered some phenolic terminal strips in several versions. Mostly 3 terminal (two independent, with a ground terminal). Those could be cut down so I could make 2 terminal ones in either right or left orientation. I also o...

Some more back fill for tonight: I installed the voltage regulator tube, and again brought the amp up with the Vari-AC while measuring the voltage across C15 A/B. It looked good. Although I don't have notes about checking the other two HV points I probably did that too but I'm not sure. Those voltag...

Before we get started on the next segment, let me throw out a few precautionary notes: 1). Tube amplifies have High Voltages inside the chassis. 2). These voltages can be stored via capacitors long after the unit is unplugged from power. 3). Discharge ALL capacitors before probing around! 4). Follow...

Did the text just outright disappear? Or did the page refresh and the text went buh-bye at that point? It just went away when I hit the preview button. I use preview to make sure I put the photos in the right place and to make sure text is formatted the way I intended, so I use it several times per...

Let me voice one major bitch about how the forum works. I'm on the west coast. The site time seems to be related to the east coast and if I'm working on a post out here on the west coast, many times the entire post is lost while I'm working on it because of a three hour time difference and some "clo...

Kris D rocks!
Drop me a line with my cost!

Bryan

Hi guys, Thought I would start a new thread about a Presto 92B Amp that I purchased several months ago In Tacoma, WA in AS-IS condition. It was the one listed back in May 2018 in a post in the classifieds on LatheTrolls... https://www.lathetrolls.com/viewtopic.php?f=4&t=7821 Here is a back shot show...

Anyone seen this flokason post yet?
http://www.flokason.ch/blog/?p=218

B

Contact ROLANDJAYS . He can make you one.

Bryan

Hey guys, The pulleys arrived Saturday but sadly, neither of my machinist friends were at the shops - but I did get a bunch of stuff done. First, I did try out the fixed shaft coupler, and also straightened up the heavy stainless steel flex coupler. I chucked that in my mill and manually rotated the...

Tonight, I can report that my last attempt at a DIY coupler just passed with flying colors (with some help). IMG_6203.JPG I ended up manually adding a little drag on the transmission flywheel as I ran through all the speed changes and by the time I let off at 45rpm, everything was smooth as a baby's...

Another update - This time unrelated to couplers for a change. One thing I had been planning to do was to have a master power on switch for everything in the console. I also wanted to have a switch for powering the vacuum pump and the stylus heater. I had two existing holes to work with on the lathe...

Always impressed by the overall scope of your projects... Thanks! Glad you enjoy! ------------------------------------------------------ Here is an update on July 4th: I've been messing around for a month or more it seems with this coupler issue for the servo. As I'm sure I've mentioned before, the...

Hey guys, Here are some details about that little microscope and how I set it up on the Fairchild. First off, the part number is G600. I bought mine from Tmart, but you can find them on E-bay, Alibaba and even Amazon. I paid $40 for mine with shipping included! It turns out there are a number of sim...

More details about the coupler issue to come.

But here is a teaser for a new post relating to an inexpensive Microscope I found and have mounted to the Fairchild.

Drool for now.... Wow! And inexpensive.
B

Hey guys, ROLANDJAYS ( John Batchelder) and his lovely wife Diana were in town yesterday for a short visit! Here is a photo taken at their new favorite local Eugene Bar / Restaurant called "Sam's Place". Oh, the Prime Rib and Clam Chowder are both awesome (only available on Fridays)! What great timi...

Quick update: Still working out a mechanical issue coupling the servo to the transmission. More on that soon. But the servo speed control has been incorporated on the touch screen. The way it works is like this: 1). Power up - Servo is disabled, speed is zero. Speed is in Red (shutdown) with no back...