Marshall JVM 205H speaker jack

[Randall]

Interesting, this from the fine folks at Cliff:


The information requested is detailed below:

Part No. CL11061 - Jack Socket S1V/SBB Black
Minimum Order Quantity (MOQ) = 100pcs

Price Breaks: 100pcs+/1,000pcs+

Prices ex works Cliff Inc USA:

100pcs+ = 0.911 USD each

1,000pcs+ = 0.730 USD each

**2,000pcs are currently available in stock at Cliff Inc USA - subject to prior sale.

A carriage charge from Cliff Inc to your delivery address would be added to your order, or you could supply your own Fedex/UPS courier account number if you prefer this method.

The Minimum Order Value (MOV) is 80.00 USD.

I hope this now answers your enquiry!

[Randall]

Well, the jack came in with a metal sleeve which is connected to the pin at the notched corner. The signal grounds on this amp all sit at about 100 Ohms above chassis ground, the only schematic I could find is posted above, but shows this point as PGND and GND. I'm not sure if it would be wise to use this metal shaft jack which would pull that point down to chassis ground. The output jack board is the same as in the schem, but the main board I have is 410-60-00. The schem is a 205-65-02.

[nickb]

Well, the jack came in with a metal sleeve which is connected to the pin at the notched corner. The signal grounds on this amp all sit at about 100 Ohms above chassis ground, the only schematic I could find is posted above, but shows this point as PGND and GND. I'm not sure if it would be wise to use this metal shaft jack which would pull that point down to chassis ground. The output jack board is the same as in the schem, but the main board I have is 410-60-00. The schem is a 205-65-02.

Use the right (insulated) jack. I think your schematic is correct. It shows that the jack ring is connected to ground but not chassis. I can't find the chassis connection anywhere so I guess it's part of the missing power input section.

Looks like you got caught out by the wrong image problem for the Switchcraft version. The pdf states the bush is nickel plated brass. I hate it when that happens. Here is the Switchcraft page

The Amphenol one looks correct

[Randall]

I ordered the Amphenol version. We shall see.