TRXBench

SSB Power modification for IC-7100

How hard can it be... where to find reliable test values for ESR

Kelvin clip cable/ cord upgrade

In this episode we fix an old but nicely accurate RF watt meter with forward and reverse setting.

We explore in this episode how a Flir one can improve troubleshooting time.

In this episode we repair a Yaesu FT-1000 D which got a couple of 100 watts into the receiver path.

In this episode we discover on my DER EE DE-5000 LCR meter which test modes are available and how we use these and what do the results telling us. It is rather more a tutorial than a review but y...

In this episode we have to manage an unexpected Racal Dana counter repair.

In this episode we have a Kenwood with the known hybrid boards problems but additional to that there is a more hidden exciting fault.

As we had some questions on the function of the protection circuits I decided to make a deep dive session to proof the function. This video might to be too specific and may be therefore not intere...

The basic function of a switch mode power supply explained with some experiments on a switch mode psu board.

In this episode we look at the function of the protection Diode. We repair the radio, do a power mod on AM and align AM and FM modulation.

In this episode we review the Signal Hound USB Spectrum Analyzer SA44B and Tracking Generator TG44 and do some experiments as you would use the unit in a ham radio lab.

In this episode we try to understand an electrolytic capacitor a little bit better. We do some experiments and some theories on how it works.

And here are the Links:
1. Mr. Carlson's Lab
https://w...

This radio is known for leaking capacitors therefore we show in this episode the preventing maintenance to be done for this radio.
We go slowly step by step and explain every step.

In this episode we build a RF signal sampler probe which is very helpful in your shack or lab to observe your outgoing TX signal.

In this episode we will modify the driver board to prevent it from burning off. The modification will be done accordantly to what ICOM is doing themselves on the newer driver boards which will be ...

In this episode we exam a IC-7000 with an odd receiver problem. Additional to that rig can't be controlled by PC via remote.
As maintainers we have to swap the back up batteries.

In this episode we look at a new CB radio with uniden pcb. Additional a little excursus on AF clipping and audio outputpower.

In this episode we have a IC-7000 with a badly burned out driver board. Additional to that we have to fight with crappy ribbon-cable

We have here an IC-706 with odd behaviour on transmit. All between 0 power and full TX power. Additional to that we were not able to verify the fault description.

Follow up: How to produce your on circuit board for electronic HF applications.
We show it in this video.

In this episode we build a BM and do some experiments with it to understand how it works. A BM is always in the TX SSB signal path.

In this episode we talk about SMD solder work. What do we need compared to the old through hole technique. How can we start off with SMD technique . And a short review on my new hot tweezers Weller...

In this episode we exam a VHF/ UHF radio with no transmit due to some trouble with the mic power supply.

In this episode we have a radio which is always on TX even without mic.

In this episode we examines a faulty ICOM IC-7000 Amateur Radio. This unit does not receive on 70cm UHF

Complete repair with tips and hints