GK 250ML Speakers

[g1]

That looks a lot better with 2 matching speakers. That squarish speaker you took out seems a bit familiar, maybe a studio monitor, but can't be sure.

[J M Fahey]

Probably.
AFAIK original ones were made by Pyle (which also suppied those in the 4 x 10" cabinets), but of course any day of the week they can switch to Eminence.
Any codes printed on those speaker frames?

[sweatyk]

That looks a lot better with 2 matching speakers. That squarish speaker you took out seems a bit familiar, maybe a studio monitor, but can't be sure.

Here's the number stamped on the back of the squarish speaker.....

[sweatyk]

Probably.
AFAIK original ones were made by Pyle (which also suppied those in the 4 x 10" cabinets), but of course any day of the week they can switch to Eminence.
Any codes printed on those speaker frames?

Here it is......

[sweatyk]

Would anyone here have a spare wire harness for the GK 250ml laying around. I have another one of these amps and it's missing that.

[The Dude]

I have one, but you'll have to buy the whole amp that it's in.

Seriously though, Mouser has a host of Molex connectors. If you get out your calipers and do some measuring, you can probably find a connector that will work. Then, it's just a matter of adding the wiring.

[J M Fahey]

Here it is......

http://www.thevintagesound.com/ffg/eia-codes.html

says:

1056	Fisher	Speakers
1059	Channel	Speakers
1098	Pyle	Speakers
1113	Acoustic Fiber Sound	Speakers
1149	Curtis Mathes	Speakers
1191	Micro Magnet	Speakers

[J M Fahey]

Searching for various combinations of the squarish speaker brought this.
Quite close, only it´s Panasonic Japanese.
That said, that speaker might have been used in a "USA model/specs" Cabinet (Hi Fi? / Studio monitor?) , I have seen power transformers labelled US - USA - EU - AU - UK and that means specs or Electrical Safety approval, or intended market, not necessarily Country of Origin or Manufacture.
Also a US made speaker , specially from the 80´s, "should" show an EIA code, this one does not.
An extra detail: **magnet backplate** IS Asian.



Traditional speaker makers (US - EU - even my own) cut/stamp backplate from a thick cold rolled steel sheet, punch a hole in it, lathe turn the polepiece out of a cold rolled steel bar and join both together by various mechanical methods, sometimes pressing (with a huge hydraulical press) polepiece into a same diameter hole (say 1.5" as in those Pyle speakers) , often "nailing" them together by hitting them with a pointed hard steel tool so they expand a little and can´t move any more, similar to primer crimping in MilSpec ammo , both techniques clearly seen here, while Asians forge the whole shebang out of a large ball of molten steel, so "no joints".
Also edges look rounded like pressed dough (what they are,only it´s steel dough); traditional manufacturing shows ragged punched edges or , best case, same but turned smooth in more expensive speakers.
Makes easy to tell UK vs China Celestion,by the way.

[sweatyk]

I have one, but you'll have to buy the whole amp that it's in.

Seriously though, Mouser has a host of Molex connectors. If you get out your calipers and do some measuring, you can probably find a connector that will work. Then, it's just a matter of adding the wiring.

I looked thru mouser and Digikey and other places. Either I suck really bad at searching for things like this or......well I just suck....lol
what term would you use when searching for this? I've put in female pin socket, molex but can't seem to find one like this. I know it has to be out there. Anyone care to help a brother out?

[The Dude]

Here's a start. You'll have to measure some things and update the search to see if they have what you need.

https://www.mouser.com/Molex/Connect...yvsm2dZ1ytkls2

[Enzo]

The white connector is an insulation displacement connector or IDC. The IDC has special pins with little sharp edged slots in them. A special press is used to shove the insulated wire down into the slot, and contact is made. You won't have such a press. SO when I encounter this I use connectors from the same series but that use crimp-on pins that are then slipped into the plastic housing. That connector is in the Molex KK-156 series. You need a four slot housing. (Secret tip: if you can only find a ten space, you can cut off a few spaces from the end...instant four.) You will need a crimper, and while there are wonderful expensive ones, my cheap Waldom one has worked just fine for me for decades.

Like this one:
https://www.digikey.com/en/products/...iABEgIJ1fD_BwE

Mouser and I am sure others sell the individual stuff, but they also sell small kits, which include a housing or two and a handful of crimp pins

Here is a four slot kit from Mouser. I am sure other Molex dealers also sell such kits.
https://www.mouser.com/ProductDetail...GkST%252BII%3D

[sweatyk]

Correct me if I'm wrong on the speaker connection. The yellow and red wire connect to the - side of the speakers and the brown and orange connect to the +.......or do I have that backwards? On the schematic it has the red and yellow going to a .33 ohm resistor to ground (R127 & R133).

[sweatyk]

The white connector is an insulation displacement connector or IDC. The IDC has special pins with little sharp edged slots in them. A special press is used to shove the insulated wire down into the slot, and contact is made. You won't have such a press. SO when I encounter this I use connectors from the same series but that use crimp-on pins that are then slipped into the plastic housing. That connector is in the Molex KK-156 series. You need a four slot housing. (Secret tip: if you can only find a ten space, you can cut off a few spaces from the end...instant four.) You will need a crimper, and while there are wonderful expensive ones, my cheap Waldom one has worked just fine for me for decades.

Like this one:
https://www.digikey.com/en/products/...iABEgIJ1fD_BwE

Mouser and I am sure others sell the individual stuff, but they also sell small kits, which include a housing or two and a handful of crimp pins

Here is a four slot kit from Mouser. I am sure other Molex dealers also sell such kits.
https://www.mouser.com/ProductDetail...GkST%252BII%3D

Thanks Enzo.......a great help!!!!