I haven't done anything much with this in recent days but have been listening to my DAB radio through it and it's continued to perform very well in this role. In fact it's probably of more practical use to me as it is than as a working wireless.
I've been connecting it up via a 'Naughty Board' which consists of two 10K resistors to mix stereo to mono and then a pair of 0.1uF capacitors to block any DC that goes a wandering. I've never previously bothered with the resistors on these sort of jobs but they do no harm and provide a bit of extra isolation.
I know I nearly got lynched a few weeks ago for floating the idea of adding a Gram socket to a Bush AC91 but nobody said anything about croc-clips!
I've also been doing a bit more research. I've found another photo of this model on the Radio Museum web-site which is a different colour. That wasn't very surprising but the whole style of the tuning dial scale is different as well and I'm starting to wonder if I've got some type of rare variant which may be worth a few bob - in my dreams.
One thing I have checked is the current of the heater-chain. This is running at 97mA and is supposed to be 100mA so that is near as makes no odds and is wrong on the safe side.
I'd also had my doubts about the value of a resistor (R10 on the R&TS data) which is supposed to be 270K. The final band on the original looked green to me but I've found that it makes NO difference whether I use a 270K or 2.7M resistor n that position.
Besides that I've found that just powering up Rob T's signal injector will make it start bleeping without any physical connection so there's certainly life within the receiving bits.
I will continue to fiddle but have been doing other jobs in recent days, including extra dog-sitting which precludes doing much as I tend to get my arm jogged by heads which require patting which is not healthy when playing about with jump-leads.
All the best
Joe
I've been connecting it up via a 'Naughty Board' which consists of two 10K resistors to mix stereo to mono and then a pair of 0.1uF capacitors to block any DC that goes a wandering. I've never previously bothered with the resistors on these sort of jobs but they do no harm and provide a bit of extra isolation.
I know I nearly got lynched a few weeks ago for floating the idea of adding a Gram socket to a Bush AC91 but nobody said anything about croc-clips!
I've also been doing a bit more research. I've found another photo of this model on the Radio Museum web-site which is a different colour. That wasn't very surprising but the whole style of the tuning dial scale is different as well and I'm starting to wonder if I've got some type of rare variant which may be worth a few bob - in my dreams.
One thing I have checked is the current of the heater-chain. This is running at 97mA and is supposed to be 100mA so that is near as makes no odds and is wrong on the safe side.
I'd also had my doubts about the value of a resistor (R10 on the R&TS data) which is supposed to be 270K. The final band on the original looked green to me but I've found that it makes NO difference whether I use a 270K or 2.7M resistor n that position.
Besides that I've found that just powering up Rob T's signal injector will make it start bleeping without any physical connection so there's certainly life within the receiving bits.
I will continue to fiddle but have been doing other jobs in recent days, including extra dog-sitting which precludes doing much as I tend to get my arm jogged by heads which require patting which is not healthy when playing about with jump-leads.
All the best
Joe
