Triumph O reproducer 2min problem

[estott]

Does your machine have a 2/4 minute converter that operates properly? I've seen some machines where dealers would lock the feed screw in the 4 minute setting and then equip the carriage with a Diamond B reproducer. Your knob might be moving without actually doing anything.

[kirtley2012]

Are you also changing the feedscrew speed as required to change from 2 to 4 minute operation? You need to do this in addition to changing the stylus on the reproducer. On a Triumph, this usually involves shifting the collar on the feedscrew/mandrel pulley. The feedscrew must rotate at half the speed for 4 minute play than it does for 2 minute play. Shifting the collar toward the belt shifts the gearing for 2 minute - away from the belt shifts to 4 minute.

Is this not the knurded knob with the pointer by the brake lever? Or is there something else that I need to change? Jan

I believe that is where your problem lies!, are you changing this when playing different records?

[phonogal]

Yes, I'm changing it. It repeats the grooves. You can actually see the needle tracking down a couple of groove and it seems the feed screw is not moving the carriage as fast as the needle is moving in the grooves. The needle gets a little sideways and moves back repeating what it just played. The speed seems to be right. It plays the 4 min cylinders just fine.Jan

[52089]

Are you also changing the feedscrew speed as required to change from 2 to 4 minute operation? You need to do this in addition to changing the stylus on the reproducer. On a Triumph, this usually involves shifting the collar on the feedscrew/mandrel pulley. The feedscrew must rotate at half the speed for 4 minute play than it does for 2 minute play. Shifting the collar toward the belt shifts the gearing for 2 minute - away from the belt shifts to 4 minute.

Is this not the knurded knob with the pointer by the brake lever? Or is there something else that I need to change? Jan

The knurled knob is the speed control - you don't want to change that once the speed is correct.

Look at this picture of a Triumph E. At the left end of the feedscrew, right before the belt, is a collar that goes in and out. In this photo, it's out all the way. On yours, try pushing it in if it's out, or out if it's in. One way is for 4 minutes records, the other for 2. In this picture, it looks like 2 is in and 4 is out. Good luck!

[Andersun]

if you have not done this already, you need to push in the round part that is sticking out of the belt pulley on the right side of the pulley. See pic...

[phonogal]

if you have not done this already, you need to push in the round part that is sticking out of the belt pulley on the right side of the pulley. See pic...

Thank you. That fixed the problem. I wish it came with the operating manual. You guys are great. I would have never figured that out. Jan

[kirtley2012]

Yes, I'm changing it. It repeats the grooves. You can actually see the needle tracking down a couple of groove and it seems the feed screw is not moving the carriage as fast as the needle is moving in the grooves. The needle gets a little sideways and moves back repeating what it just played. The speed seems to be right. It plays the 4 min cylinders just fine.Jan

Oh , I see now, I thought you were on about the 2/4 minute lever fitted with some conversion kits and at the beginning I thought you were already changing it between 2 and 4 minute... My bad!. It's good you've figured it out now though!

[Lucius1958]

Are you also changing the feedscrew speed as required to change from 2 to 4 minute operation? You need to do this in addition to changing the stylus on the reproducer. On a Triumph, this usually involves shifting the collar on the feedscrew/mandrel pulley. The feedscrew must rotate at half the speed for 4 minute play than it does for 2 minute play. Shifting the collar toward the belt shifts the gearing for 2 minute - away from the belt shifts to 4 minute.

Is this not the knurded knob with the pointer by the brake lever? Or is there something else that I need to change? Jan

That's the motor speed control. the feedscrew speed control is on the upper pulley - a section that you either push in or pull out. You can tell which speed you're on by looking at the feedscrew: if it's moving at the same speed as the pulley, that's the 2 minute speed. If it's moving slower, that's the 4 minute speed.

Bill

[VintageTechnologies]

I have both a Home and Triumph 2/4 minute machine with Type "O" reproducer, so I know a thing or two about those combinations. Possibly the gear change clutch is not being fully engaged when you change from 4 to 2 minutes. Here is what to look for: at the 4 minute setting, the threaded feed screw should turn at 80 rpm, which is half the speed of the mandrel. That is obvious to spot. When you change to the 2 minute setting, the threaded feed screw should turn at 160 rpm, the same speed as the mandrel.

If you set the gear clutch to 2 minute and are playing a 2 minute cylinder, then either stylus ought to track it. Of course, you really want to use the proper stylus for a given record to prevent record wear or tracking problems.

[phonogal]

Thanks everyone that responded. I was just moving the speed control, not the collar on the pulley. Didn't know that part even moved. After I moved it, everything worked great. I would have never figured this out on my own. Thanks again, Jan