I've looked and looked for a schematic for an MRA4. What model did they come in? I think someone told me that they came in hideaway units.
I did somehow find a parts list for an MRA4, and it's very close to an MRA5, I'd just like to have the proper schematic. I don't mind buying a manual, but I don't know which one.
The particular one I'm working on evidently fried the power supply choke and to make up for it, they made C1 out of 3 caps to get close to 300uF.
Tony
The 100G used the MRA4. You can find a decent copy of the schematic here
https://arcarc.xmission.com/PDF_Jukebox/Seeburg/Schematics/
Replacement power supply chokes for similar Seeburg amps were discussed here a few years ago and the Hammond 158Q was deemed a good fit - if that helps?
Norman.
------ Original Message ------ From: "Tony Miklos via Jukebox-list" jukebox-list@lists.netlojix.com To: "Jukebox mailing list" jukebox-list@lists.netlojix.com Cc: "Tony Miklos" tonysjukeboxrepair@gmail.com Sent: Monday, 11 Dec, 23 At 14:01 Subject: [Jukebox-list] MRA4-L6 Schematic I've looked and looked for a schematic for an MRA4. What model did they come in? I think someone told me that they came in hideaway units. I did somehow find a parts list for an MRA4, and it's very close to an MRA5, I'd just like to have the proper schematic. I don't mind buying a manual, but I don't know which one. The particular one I'm working on evidently fried the power supply choke and to make up for it, they made C1 out of 3 caps to get close to 300uF. Tony _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/ http://jukebox.markmail.org/
I see it now. For some reason I didn't think it was there. That's where I got the parts list. I suppose I had a big brain fart? I better write down that Hammond number.
Is Mouser as good a place as any? 1 for stock and 1 to use.
Thanks,
Tony
On 12/11/2023 9:41 AM, NORMAN MACRAE wrote:
The 100G used the MRA4. You can find a decent copy of the schematic here
https://arcarc.xmission.com/PDF_Jukebox/Seeburg/Schematics/
Replacement power supply chokes for similar Seeburg amps were discussed here a few years ago and the Hammond 158Q was deemed a good fit - if that helps?
Norman.
------ Original Message ------ From: "Tony Miklos via Jukebox-list" <jukebox-list@lists.netlojix.com> To: "Jukebox mailing list" <jukebox-list@lists.netlojix.com> Cc: "Tony Miklos" <tonysjukeboxrepair@gmail.com> Sent: Monday, 11 Dec, 23 At 14:01 Subject: [Jukebox-list] MRA4-L6 Schematic I've looked and looked for a schematic for an MRA4. What model did they come in? I think someone told me that they came in hideaway units. I did somehow find a parts list for an MRA4, and it's very close to an MRA5, I'd just like to have the proper schematic. I don't mind buying a manual, but I don't know which one. The particular one I'm working on evidently fried the power supply choke and to make up for it, they made C1 out of 3 caps to get close to 300uF. Tony _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.comTo unsubscribe send an email to jukebox-list-leave@lists.netlojix.com%(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
Hello,
We always use the 156R which is smaller then the 158Q and fits better in the amplifier.
https://www.jukebox-revival.eu/en/products/seeburg-general-parts-5297/seebur...
Piet Jukebox Revival
-----Oorspronkelijk bericht----- Van: Tony Miklos via Jukebox-list jukebox-list@lists.netlojix.com Verzonden: dinsdag 12 december 2023 12:26 Aan: NORMAN MACRAE nmacrae23@btinternet.com; Jukebox mailing list jukebox-list@lists.netlojix.com CC: Tony Miklos tonysjukeboxrepair@gmail.com Onderwerp: [Jukebox-list] Re: MRA4-L6 Schematic
I see it now. For some reason I didn't think it was there. That's where I got the parts list. I suppose I had a big brain fart? I better write down that Hammond number.
Is Mouser as good a place as any? 1 for stock and 1 to use.
Thanks,
Tony
On 12/11/2023 9:41 AM, NORMAN MACRAE wrote:
The 100G used the MRA4. You can find a decent copy of the schematic here
https://arcarc.xmission.com/PDF_Jukebox/Seeburg/Schematics/
Replacement power supply chokes for similar Seeburg amps were discussed here a few years ago and the Hammond 158Q was deemed a good fit - if that helps?
Norman.
------ Original Message ------ From: "Tony Miklos via Jukebox-list" <jukebox-list@lists.netlojix.com> To: "Jukebox mailing list" <jukebox-list@lists.netlojix.com> Cc: "Tony Miklos" <tonysjukeboxrepair@gmail.com> Sent: Monday, 11 Dec, 23 At 14:01 Subject: [Jukebox-list] MRA4-L6 Schematic I've looked and looked for a schematic for an MRA4. What model did they come in? I think someone told me that they came in hideaway units. I did somehow find a parts list for an MRA4, and it's very close to an MRA5, I'd just like to have the proper schematic. I don't mind buying a manual, but I don't know which one. The particular one I'm working on evidently fried the power supply choke and to make up for it, they made C1 out of 3 caps to get close to 300uF. Tony _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.comTo unsubscribe send an email to jukebox-list-leave@lists.netlojix.com%(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
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