Tesoro Tejon

[Derx]

transmitter sheet very similar in ELDORADO or LOBO
You can take the whole scheme of the transmitter by LOBO )))

[Skippy]

I agree with the oscillator power supply problem, I don't think transistor V2 will feed +8V/-5V into the 4024 logic IC (powered off 0V and +8V). Diode D7 is probably shown correctly connected, to stop the -5V supply going positive. R55 won't be 440 ohms. The * value capacitors will be unmarked SMD ones, hence the lack of values on the schematic, they would mostly need removing to measure them. Is C4 even fitted? I would think it must be very small in value, else it would upset the operation of the phase detectors by adding a lag to the inverted signal. Presumably the opamps and comparators are powered from +/-5V?

[Derx]

see this! correct this!

[Derx]

more?

about * capacitors?

What is the frequency of the device?
What type of coil used? Ring? DD?
What are the parameters of detection device?

[hugo]

The -5V regulator has IN and OUT swapped over.

78L08 too.

[Skippy]

The -5V regulator has IN and OUT swapped over.

[Derx]

This last scheme is fine? Free errors?

[kt315]

this is no 1 job for silverdog over the summer PCB

just a bit bigger holes please

it's a real problem people does not wish to know some technological things/aspect. GMT King cobra PCB has so small diameter for wire holes I can not back them in PCB! I use 1.2mm diameter for fat wire and 1mm diameter for thin wire, thinking that is enough.

[digger barns]

top priority

this is no 1 job for silverdog over the summer PCB

just a bit bigger holes please

[GSL]

Hello friends!
This is almost the whole scheme of the analog part of Tejon. if
anyone have information about missing values of the capacitors let's share them.

Small additions and corrections schemes

[DavidB]

Thanks a bunch, really appreciate posts like this.

[kt315]

thanks N@SKO. great work done. I have read Tejon is similar to Troy Shadow but now see it is not.

wish you success

[N@SKO]

Hello friends!
This is almost the whole scheme of the analog part of Tejon. if
anyone have information about missing values of the capacitors let's share them.