8mm Forum: Imac Bisonix

»	8mm Forum » 8mm Forum » Imac Bisonix

UBBFriend: Email this page to someone!

Author

Topic: Imac Bisonix

Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted December 12, 2013 12:31 PM

Have acquired an Imac Bisonix which is a dual Super8/Standard8 sound projector but the amplifier is dead (keeps blowing a fuse). Would really like to get hold of a wiring diagram/schematic to help repair it. Have tried Film Tech but they don't list it. Has anyone got any ideas on where I might find one?

| IP: Logged

Paul Browning
Phenomenal Film Handler

Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011

posted December 12, 2013 01:15 PM

Hi Terry, sorry to hear you got problems with your projector. Not the same projector, but my fumeo was doing the same thing. The projector was fine, lamp ok ,motor ok, all other functions good, but as soon as you replaced the amplifier fuse, popped it every time, but I did find the fault, one of the output transistors had failed. Its probably one of the only other electronic components that could draw the amount of current to blow the fuse, normally a direct short to ground. If you can get a look at this item it might be still around from an online electronics dealer.

| IP: Logged

Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted December 12, 2013 01:51 PM

Thank you Paul for your input and you may well be right. If that is so I have a further problem in that the transistors are the old Germanium? type. Where would you get these today

| IP: Logged

Paul Browning
Phenomenal Film Handler

Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011

posted December 12, 2013 02:10 PM

Hi terry, try a search online or ebay, you can find stuff online, old and deleted obsolete items, what case style are they?. I was surprised to get my transistors for the fumeo, its looked like a rats nest inside, very old school, but sure enough rs still did that transistor off the shelf.

| IP: Logged

Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted December 12, 2013 02:17 PM

Well that's good news. I guess I need to find out whether it is the transistor first. Thanks for all your help. I really would like to get this up and running because it is in very good condition otherwise.

| IP: Logged

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted December 12, 2013 02:51 PM

Have a look at Langrex on eBay for some hard to find items such as valves, transistors, etc.
http://stores.ebay.co.uk/LANGREX?_trksid=p2047675.l2563

--------------------
Maurice

| IP: Logged

Terry Sills
Phenomenal Film Handler

Posts: 1423
From: Weymouth,Dorset,England
Registered: Oct 2012

posted December 12, 2013 04:20 PM

Thanks Maurice. Your a mine of information.

| IP: Logged

Leonard Goss
Film Handler

Posts: 33
From: Launceston, Cornwall, UK.
Registered: Jul 2012

posted March 06, 2019 02:48 PM

I know this is an old thread but did you ever get this sorted? I have acquired an IMAC Bisonix myself with a blown fuse!

--------------------
A fan of 8mm movies since the mid 1960s and still as keen as ever!

| IP: Logged

All times are Central

Printer-friendly view of this topic

UBB.classic^TM 6.3.1.2