802 diaphragm questions

[robertbartsch]

Attached is a picture of an old busted 802 diaphram and plastic loading cap from an Altec lansing 802 D compression driver.

Questions:

1. Can I replace the original diaphragm with a Radian 1228 without other modification (The GPA cite says a conversion kit is necessary for their diaphragms for older pre-1968 drivers)?

2. Will the plastic conversion cap work with the Radian fram?

3. Since these are Alnico motors, should I recharge the mags since their origin is unknown? The thin terminal wires are broken on each diaphragm so I'm not sure they were exposed to high power (e.g., the VC on the frams do not appear to be burned out).

[whitebroncoii]

1. The earlier drivers used screw terminals on the diaphragm and later ones use spade lugs. The Radian is a direct bolt-in with spade lugs.

2. Yes, see above

3. Wires breaking is a fairly common failure of the 800/900 diaphragms. The wires can break from over-excursion (high power) or from old age. HF drivers rarely need to be re-magnetized. However, Alnico motors can lose their charge if they get hit or dropped.