Well, That’s Not as Annoying

After a bit of research, I realized I was most certainly using the wrong revision of instructions. Whoops.

I have a Rev 4 kit, but the instructions I’ve been using are Rev 3.

Well, that also explains why I have

  • four 10uF capacitors instead of six
  • a few extra 1uF ceramic capacitors and
  • why I have two extra resistors laying about

The good news is that I won’t have to remove or rework anything, yet I won’t know for sure until I’m done assembling and testing.

Note to self: make sure the schematics match the PCB… and vice versa.

The story so far:

DSC00161

Still several more things to do yet:

  • toroids to wind,
  • a few potentiometers to install,
  • jacks for headphones and an external key,
  • a few pushbuttons,
  • and of course a display

Will it work? No idea. But I’m eager to find out.

Well, That’s Annoying…

Well, that’s a bit annoying… I was many hours into the build and noticed that the instructions were calling out a couple of electrolytic capacitors…

Image 3-1-19 at 21.43

Okay, but in reality, the silkscreen on the PCB differed…

DSC00159Not quite sure what the markings are for C21, C22, and C54. The silkscreen indicates a ceramic capacitor, but the instructions call for electrolytic.

Time to do some research as time permits…

What in the hell could it possibly be???

The latest assembly from Casa de Juan;

fullsizeoutput_3f28

A zap-o-matic? A high-precision random-number generator? A molecular stun-gun?

a 50-Ohm dummy load for testing transmitters up to 20w output to minimize the risk of

  1. transmitting a signal; and
  2. burning up a transmitter while not hooked up to an antenna

It’s effectively a sandwitch of small PCBs surrounding resistors along with an appropriate capcitor and diode to smooth out the signal while testing.

Yep, the soldering work still needs some improvement. Like the last project, I’m actually rather impressed that I was able to make it work as expected.

And next time, we’ll do something a bit more challenging.