[Collins] WTB knob for Collins 75A4

[Dr. Gerald N. Johnson]

Looks a lot like a Davies 4100 and the skirt may be mounted with a few
screws to the back of the knob.
www.alliedelec.com/images/products/datasheets/bm/DAVIES_MOLDING_CO/70097835.pdf
$1.95 at Allied, not cancellable, not returnable but they have 1852 in
stock.

Mouser shows none in stock and a higher price but a better drawing.
www.mouser.com/ds/2/102/4100-185937.pdf

datasheet.octopart.com/4107AR-Davies-Molding-datasheet-9618490.pdf shows
the skirt is separate, part number 4110 to fit the 4100 knob and the
assembly is 4104 from Davies Molding.

W9GB at:
forums.qrz.com/showthread.php?174788-DAKA-WARE-Hunting-for-that-knob
alleges that Dakaware was a Davies Molding brand name so the current
Davies Molding knob is the same part as Dakaware.

Google Davies 4104 for a ton of hits and maybe a distributor with some
in stock.

A couple of the knobs in the collection:
www.ebay.com/itm/DAVEN-RCA-DAKAWARE-KNOBS-PULTEC-FAIRCHILD-LANGEVIN-WESTERN-ELECTRIC-/171365309561?pt=Vintage_Electronics_R2&hash=item27e62b1c79
look like 4104.

www.ebay.com/itm/Dakaware-1-1-2-brass-shim-Knob-Ampex-Altec-Collins-51J4-R388-75A-4-2-Inch-Dia-/331215606239?pt=US_Ham_Radio_Receivers&hash=item4d1dfd11df
claims to be the exact knob you want and the second picture shows the
screws holding the skirt to the knob.

www.ebay.com/itm/NOS-Dakaware-Number-4109-3-Inch-Skirted-Knob-For-Collins-75A-1-and-More-/160938521565?pt=Vintage_Electronics_R2&hash=item2578aef3dd
claims to be the main tuning knob for 75A receivers which someone was
wanting on this list in past few days. The seller thinks the insert is
gold rather than brass by the price.

73, Jerry, K0CQ. Technical Adviser to the Collins Radio Association.
On 6/22/2014 1:08 PM, John King via Collins wrote:
> I wish to buy a replacement knob for my 75A4. The knob is  one with a
> 1 5/8 inch skirt on it. There are four knobs with that  diameter, but
> I only need one. One of my knobs has a chunk broken out of the knob,
> but the skirt is unbroken.
>
> If someone could furnish me with a Dakaware knob number to replace my
> broken knob, I would appreciate it. If you have one for sale or can
> furnish me with a source, I will appreciate your supplying it to me.
> Thanks and 73, John, K5PGW
> ______________________________________________________________
>