Apple IIc plus RGB video?

["js@cimmeri.com" <js@cimmeri.com>]

Does anyone know if there was an RGB adaptor for the ][C/C+ video
connector?   I know of the RF / TV one..   Not sure if you even CAN get
from the below signals to RGB, but would be very nice to have such.

DB-15 Video Expansion Connector
-------------------------------
1- TEXT Video text signal from TMG; set to inverse of GR, except in
double high-resolution mode.
2- 14M 14M master timing signal from the system oscillator.
3- SYNC* Displays horizontal and vertical synchronization signal from
IOU pin 39.
4- SEGB Displays vertical counter bit from IOU pin 4; in text mode,
indicates second low-order vertical counter; in graphics mode,
indicates low-resolution.
5- 1VSOUND One-volt sound signal from pin 5 of the audio hybrid circuit
(AUD).
6- LDPS* Video shift-register load enable from pin 12 of TMG.
7- WNDW* Active area display blanking; includes both horizontal and
vertical blanking.
8- +12V Regulated +12 volts DC; can drive 300mA.
9- PRAS* RAM row-address strobe from TMG pin 19.
10- GR Graphics mode enable from IOU pin 2.
11- SEROUT* Serialized character generator output from pin 1 of the
74LS166 shift register.
12- NTSC Composite NTSC video signal from VID hybrid chip.
13- GND Ground reference and supply.
14- VIDD7 From 74LS374 video latch; causes half-dot shift high.
15- CREF Color reference signal from TMG pin 3; 3.58 MHz.

Note: The signals at the DB-15 on the Apple IIc are not the same as
those at the DB-15 end of the Apple III, Apple IIGS, and Macintosh II.
Do not attempt to plug a cable intended for one into the other.

Several of these signals, such as the 14 MHz, must be buffered within
about 4 inches of the back panel connector--preferably inside a
container directly connected to the back panel.