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Post by Ron Rich on Sept 20, 2020 17:18:41 GMT
Hi Robby,
Yes-- I saw that too, and wondered ?? Isn't the amp powered up by the same relay as the TT ? Ron Rich
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Post by robbytherobot on Sept 20, 2020 17:54:09 GMT
In junction box, amp & TT on same relay.
There is also a relay inside amp with socket for TT, but on mine, no difference if it's plugged on amp or junction box.
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Post by Ron Rich on Sept 20, 2020 18:38:22 GMT
OK-- It's about time to get out the schematic, and see what's happening--why ? Ron Rich
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Post by tonup69 on Sept 21, 2020 13:32:22 GMT
I am also going to re-upholster the inside and get rid of the nasty gold curtain like material - and nasty green material a previous own used on the sides of the box (inside). Original curtain is like a towel, and it's yellow, not gold  Original green material should also look like a towel, it's original. I'll save it for you. Stinks like old stale cigarettes as well. Where should i send it? |
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Post by tonup69 on Sept 21, 2020 13:35:29 GMT
I looked at the video, your turntable only start when needle is already dropped on shellac. Mine spin way sooner, before shellac is on it ! Any idea why ? Slow down, cowboys! This is NOT a problem. The reason it is not playing immediately is because the amp shuts itself off if you haven't play a selection or there are no more selections to play. The tubes start to cool down. In order for the next record to play (remember the 78 tone arm will be at the START of the record) the tubes need to warm back up before it kicks the turn table back on. It is NOT an issue once the tubs are warm - i.e. when there are multiple selections in a row. |
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Post by tonup69 on Sept 21, 2020 13:36:11 GMT
OK-- It's about time to get out the schematic, and see what's happening--why ? Ron Rich No - see above. |
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Post by tonup69 on Sept 25, 2020 14:16:09 GMT
I'm not sure how you guys typically do this here, but I am marking this issue RESOLVED just for future reference.
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Post by Ron Rich on Sept 25, 2020 16:19:04 GMT
The schematic shows this "warm up feature"-- thus getting out the schematic, and READING it, would solve this issue. LOL-- Ron Rich
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Post by tonup69 on Sept 25, 2020 16:46:47 GMT
That wasn't a problem from the start, though. I knew about the warm up feature. My only questions were:
5) I do not have a 78RPM motor, I have a 45 motor - is that the only way to change the speed? - Solved with bushing.
6) I believe, but am not sure, that the snail gear which raises the tone arm must be replaced with a 78 snail gear - true? - Solved by user robbytherobot
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Post by robbytherobot on Sept 26, 2020 3:11:57 GMT
There is no "warm up feature" on the B. Even amp cold, turntable spin when the record search begin.
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1inxs
Junior Member
Posts: 68
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Post by 1inxs on Feb 14, 2022 16:17:19 GMT
Hi Ron Rich,
Can you help sort out this old post for clarification? I would dispute the information stating that the picture of the aluminum cast tonearm being for 78rpm play. I suspect this tonearm was cast with a section midway on the underside for clearance of the blue rings used in 45 rpm play. I haven’t been able to determine a functioning difference from the tonearm cams. I wondered if the shorter, deeper form is to assist in rejecting the 45 rpm record. The tonearm spring seems to be able to be adjusted for either 45 rpm or 78 rpm tonearm starting placement. Your wisdom would be greatly appreciated.
Thank you
Robert
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Post by Ron Rich on Feb 14, 2022 19:09:25 GMT
Hi Robert,
Sorry-- no such "wisdom" here-- have done next to nothing with 78 rpm models -- Hopefully someone will know -- ?? Ron Rich
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Post by robbytherobot on Feb 16, 2022 14:42:32 GMT
Hi Ron Rich, I would dispute the information stating that the picture of the aluminum cast tonearm being for 78rpm play. I suspect this tonearm was cast with a section midway on the underside for clearance of the blue rings used in 45 rpm play. I haven’t been able to determine a functioning difference from the tonearm cams. I wondered if the shorter, deeper form is to assist in rejecting the 45 rpm record. The tonearm spring seems to be able to be adjusted for either 45 rpm or 78 rpm tonearm starting placement. Your wisdom would be greatly appreciated. Thank you Robert Why would you dispute a fact ? The tonearm for 45rpm is totally different (length, shape...), it's in the manual. There is no spring on the 78rpm tonearm, nor on the 45rpm.
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Post by gazzy58 on Feb 17, 2022 18:20:09 GMT
Yep, Ron is correct. The cast tone arm in the picture is what was in my old AMI B 78 player. The 45 players I have seen have a long thin tone arm almost like a modern Hi Fi. Gary
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Post by Ron Rich on Feb 17, 2022 18:50:10 GMT
Sorry Gary,
But-- "Ron" is NOT correct, here-- please be careful who you attribute what, too ! Re- read my earlier post (LOL!)
Ron Rich
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