The Sinclair QL Forum

Ben Versteeg in the Netherlands sells a cute little dual-drive set that works well with the GoldCard. https://www.bytedelight.com/?product=dual-floppydrive-set I use that myself and can recommend it. Note the drives are 1.44M type that might have problems (not experienced here) reading DD disks. DD...

Hello everyone

Now that I have my Gold Card up and working I was wondering where I would find a suitable disk drive for my QL?

Can anyone suggest any resources or recommend any particular source?

Thanks in advance!

klausfrank wrote:About the values for use with V2 and V3 - I think it is the same- the function the small circuit must be the same. It is not changed on the different versions.

Klaus

Thank you very much Klaus! This is really helpful! Very much appreciated!

Kind Regards
Neil

The reason, why the diode and the resistor are soldered only at one end,is that they disconnected, and I don’t loose them. Just in case..... Ahh, I understand - the photo you sent me is of a modified board! That makes sense! Also, are the values for the diode and resistor going to be the same for a...

klausfrank wrote:Hi again

The values of the diode and resistor.

The diode is a zenerdiode -BZX 55C 5.1v

The resistor is a 10 Kohm 5%

IMG_1391.JPG
IMG_1392.JPG

Klaus

Also, are these values ok for use on a v2 or v3 board (red)?

Thanks
Neil

Hi again The values of the diode and resistor. The diode is a zenerdiode -BZX 55C 5.1v The resistor is a 10 Kohm 5% IMG_1391.JPG IMG_1392.JPG Klaus Hi Klaus Excellent!!! Thank you very much! Out of curiosity, the diode only looks soldered to the board on the left-hand side, with the right side stic...

klausfrank wrote:I think my attachment got lost
- so here it is
Gold Card mod 1.pdf
Gold Card mod 2.pdf

Thank you Klaus! Can you advise me on which particular resistor and diode needs to be used when returning the card to normal 9v operation please?

Kind Regards
Neil

Hello I have found some information about the modification of the Gold Card in my files. I have done to my Gold Card. I have also put one card back to "normal" for a friend. WARNING Be sure that the Gold Card is in the right state before powering up! And be aware - Murphy's law Klaus Hi K...

Hi, I have just remembered that there was a backplane for the QL called Qplaneqplane.jpg Which allowed connection of QL expansions and powered from an AT power supply. All expansions were required to be modified to run on 5v, which was mainly bridging the voltage regulator with a wire. Except for t...

tofro wrote:Easy - it's not in a QL atm, anyhow.
IMG_0877.JPG
IMG_0876.JPG

Thanks very much tofro, this is really helpful!