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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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16th Aug 2021, 11:02 am | #61 |
Dekatron
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
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Re: Ferguson 3216 Reel to Reel Check Out
Bertram meter measures around 1,350 Ohms both on DMM and Avometer resistance measurements which I assume is good, no sign of any pointer defection when meter is measured.
Good record signal going to meter when scoped. Removed meter for inspection. Meter pointer does not move at all when meter moved or when finger run along its front (normally static would produce some pointer movement). Removed cover off the meter, the pointer feels stuck solid. After some gentle shaking the pointer started to move and moved across to the right hand side (was stuck on the left hand side) where it is now stuck solid. The little metal strap at 45 degrees just below middle looks suspiciously misshapen. Will have a good look under magnifying glass, all very delicate do not want to be too heavy handed with it. David |
16th Aug 2021, 1:57 pm | #62 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
By gently pushing on the coil assembly was able to get the pointer to return to the left hand side but once again then locked solid. While probing around trying to work out what is causing it to lock solid the pointer plate suddenly become detached and the the tiny coiled spring that sits above the plate has now broken away at one end from its soldered joint.
So almost the certainly the end of this meter David |
16th Aug 2021, 2:27 pm | #63 |
Octode
Join Date: Aug 2008
Location: Rotherham, South Yorkshire, UK.
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Re: Ferguson 3216 Reel to Reel Check Out
My sincere commiserations David, I absolutely dread doing meter work myself as it invariably goes badly…..
Peter |
16th Aug 2021, 5:46 pm | #64 |
Dekatron
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Location: Near Swindon, North Wiltshire, UK.
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Re: Ferguson 3216 Reel to Reel Check Out
Yes, bad luck with the Bertram meter. Perhaps it suffered during the rough handling of the recorder on its way to you.
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17th Aug 2021, 11:04 am | #65 |
Dekatron
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Location: Worthing, West Sussex, UK.
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Re: Ferguson 3216 Reel to Reel Check Out
Yes quite possibly, a pain as will be very difficult to source a replacement, at least it is not a stopper, i.e. can still do recordings.
David |
18th Aug 2021, 6:58 pm | #66 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Checked line recording into the PU and PU 2 DIN inputs, recorded on all 4 separate tracks.
Vey good results obtained, good quality and plenty of volume, even with no record level meter to monitor the set record level. David |
19th Aug 2021, 6:44 pm | #67 |
Nonode
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
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Re: Ferguson 3216 Reel to Reel Check Out
Hi!
Is this any help? It looks like the meter may be missing or inside loose, but you might get items like your switched DIN LS socket and a plastic top from it! https://www.ebay.co.uk/itm/Ultra-620...-127635-2958-0 Chris Williams
__________________
It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed! |
19th Aug 2021, 6:59 pm | #68 | |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Quote:
Unfortunately, the padded black "leather cloth" (ICI's Rexine) lid for the 6206 is very different to that for the 3216. Photo of the Ultra 6202 attached. Last edited by dazzlevision; 19th Aug 2021 at 7:06 pm. |
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19th Aug 2021, 8:39 pm | #69 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Thank you Chris for spotting this.
A real shame it is not more local to me, would have been worth getting as you say for the switched speaker DIN, the plastic top panel and a slight possibility that the record level meter maybe inside and working and other maybe useful spare parts. Do not often see R2Rs going this cheap for spares and with the "Make Offer" option could probably get it even cheaper. David |
24th Aug 2021, 7:52 pm | #70 | |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Quote:
Now need to find some black filler for the crack. David |
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8th Sep 2021, 2:00 pm | #71 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Rechecked microphone recording into the Radio input DIN using 3 Grundig microphones ( 2 x GDM 311 & 1 x GDM 18) that I recently purchased from the same seller as the 3216, all 3 worked well.
David |
11th Sep 2021, 10:26 am | #72 | |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Quote:
It is homemade with 2 sets of twinflex going into a tobacco tin with a 2 way changeover switch and 4 loudspeaker DIN sockets, so looks like a 2 way switch for 2 sets of loudspeakers. I thought I will never use this and was about to throw it away when I then realised that the DIN sockets are the switched 3 pin/4 contact type. So I can use one of them to replace the defective DIN on the 4216, it is riveted in so will drill it out. So a good find. David |
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11th Sep 2021, 12:21 pm | #73 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
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12th Sep 2021, 10:43 pm | #74 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Removed the defective speaker DIN socket by drilling out the rivets, all my small drill bits struggled, think I need to get some new bits.
David |
14th Sep 2021, 5:08 pm | #75 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
While doing speaker DIN socket replacement work, a C clip fell out from somewhere, today on the floor under where I was working, I also found a white pastic washer (8mm outer diameter) which must go with the C clip.
I have visually checked all the numerous C clip positions and cannot find a missing C clip and all either have no washer or a brown fibre washer. Will keep looking before I re-assemble, everything appears to be working normally. David |
14th Sep 2021, 5:12 pm | #76 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
That looks very much like the PTFE washer and circlip that keep the end of the Rec/Play switch actuating stud fixed to the copper side of the PCB.
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14th Sep 2021, 6:18 pm | #77 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Photo of these items in position.
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14th Sep 2021, 7:17 pm | #78 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Thank you very much dazzlevision, spot on. Have now refitted it.
I did vaguely remember seeing a white washer previoulsy but could not remember where and when rechecking missed it because of the metal screening panel above, although there is a round hole in the panel directly above it ? maybe to look through to see if the C clip/washer are still there David |
14th Sep 2021, 7:23 pm | #79 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Glue repaired the 2 broken blades on the motor fan impeller.
First tried E.M.A. Plastic Weld (first time I have tried this glue) which dismally failed to do anything, then used Superglue which worked OK. David |
14th Sep 2021, 9:27 pm | #80 |
Dekatron
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Re: Ferguson 3216 Reel to Reel Check Out
Fitted the replacement switched speaker DIN socket, used the dome head screws that were used on the tobacco tin to screw into the socket, the screws are rather long but OK.
Had to drill out/enlarge a little the mounting holes in the chassis metalwork for the screws to fit through. Wired the socket as per the schematic or at least my interpretation of the schematic. It identifies the 4 pins as a (output transformer connection), b (ground connection), c and fourth pin is not actually identied (c and unidentified pin are the 2 pins across the DIN internal switch). Both the original and the replacement socket pins are identified as 1, 2, 3 & 4. Electricaly checking out the connections 1 corresponds to a, 2 to b, 3 to c and 4 to the unidentified pin. So as per schematic I connected the 3 wires plus link wire which resulted in the internal loudspeaker wire connecting to pin 4 (shows as unidentified in schematic) and the link wire from pins 1 to 3. But when tested with an external speaker connected, the external speaker was always working together with the internal speaker in both orientations of the speaker DIN plug. In one of the 2 orientations the DIN plug should mute (disconnect) the internal speaker just leaving the external speaker connected. Checking all the connections I realised that the wiring was not correct due to incorrect schematic (or at best very ambigous). The correct connections are for the internal speaker wire to go to pin 3 and the link wire to go from pin 1 to pin 4. These correct connections were also confirmed when I checked photo of the old connector connections before the wiring was disturbed. After correcting the connections all working correctly now. The performance of the external speaker was somewhat disappointing, it was quieter than the internal speaker and just did not sound as good as the internal speaker. I have used this 4 Ohm Grundig Box RB 500 before (a stereo pair actually) and always thought they sounded good. David Last edited by DMcMahon; 14th Sep 2021 at 9:37 pm. |