Thanks. I guess I need another washer between the C clip and the wave washer. The wave washer is not "thick" enough to put pressure on the back of the KHz dial. It just flops around. And it also hits the front panel before it makes any resistance to the KHz disk.

73, Jim W7RY

On 6/23/2022 4:19 PM, Steve Wedge, W1ES/4 via groups.io wrote:

Jim, the earlier sets use a completely different system.? The earlier sets (including the B's) have a single shaft to the PTO, with a single dial for reading frequency to the nearest 25 kHz, with graduations on the knob skirt for reading to the nearest 1 kHz.? The skirt, which is held in place by a wave washer pressing against a circlip that's mounted on the shaft.? The skirt can be slipped on the shaft to calibrate the frequency.

The C Line uses two discs and has no calibration marks on the skirt (though there is a dimple to indicate rotation by touch).? There are concentric shafts that synch the PTO frequency to the readout that are coupled by that bushing.

If you have an R-4B, there is no need for the bushing.

73,

Steve Wedge, W1ES/4

Time flies like an arrow.? Fruit flies like a banana.

Sent with secure email.

------- Original Message -------
On Thursday, June 23rd, 2022 at 4:19 PM, Jim W7RY via groups.io <jimw7ry@...> wrote:

Is this the same for the R4B as well?

Thanks

73, Jim W7RY

On 6/23/2022 11:22 AM, Mark - WB0IQK wrote:

Tim,
I think this is what your looking for.

73's,
Mark, WB0IQK