Chinese toys

[kt315]

did mods...
did add banana female sockets, it gives now possibility to use all kinds of probes from testers.
glued a piece of broken drill into the lever of micros socket. the lever was short to use.

[surfdetector]

These things give amazing functionality for the price that we pay.

[6666]

I have been using my GM328 for some jfet testing, I am finding it a very handy device, thanks all for the tip to get one

[nickel_n]

Claim a full 100% refund from the seller, it they refuse start a claim in Ebay, done this a few times because of similar problems

i did get my money back,
they don't want the broken back so if i can fix it i can use it.

[6666]

[ATTACH]49350[/ATTACH] I got a GM328A tester from eBay, only to receive it broken because the seller ship it in a plastic envelop.
the rotary encoder with switch was snapped in two.
I wander if anyone has the part number for it or can give a link to where I can buy one?

there are many on eBay all looking physically the same but with different functionality.(i think)

Claim a full 100% refund from the seller, it they refuse start a claim in Ebay, done this a few times because of similar problems

[nickel_n]

GM328A tester

I got a GM328A tester from eBay, only to receive it broken because the seller ship it in a plastic envelop.
the rotary encoder with switch was snapped in two.
I wander if anyone has the part number for it or can give a link to where I can buy one?

there are many on eBay all looking physically the same but with different functionality.(i think)

[kt315]

shocking price https://www.aliexpress.com/item/3284...6-0f34c78369ab

[kt315]

corrected FC schematic.

[kt315]

calibration of frequency counter

[Andi68]

I had a similar tester, and after almost a year, it has passed

[kt315]

anybody did this amplifier? i solder the board now. https://www.aliexpress.com/item/1000...27424c4duzufAJ

product details:

Audio power amplifier driver LME49810 is the highest power density amplifier driver. The single-chip drive built compensatory clamp circuit can be minimized distortion audio system .LME49810 chip can drive high-power discrete transistors, optimized for output power up to 3000W high-end consumer electronics and professional audio equipment audio system. the total harmonic distortion and noise can be reduced to 0.0007% .LME49810 chip built-in high-quality, high-performance power amplifier output stage driver required audio circuitry, can replace more pieces of discrete components.

1.6mm thick sheet using double-sided PCB, 2.0 oz copper thickness, HASL whole process to ensure the size of the current through the good performance. PCB-class quality.

Basic parameters:

Voltage: + - 45V (DC) and + -60V (DC)

Size: 255MM * 78MM

[kt315]

HF in kit they always put unfake chip LOL!

https://www.aliexpress.com/item/3296...27424c4djJW4Nn

[homefire]

What kit is this ?

[kt315]

sure working chip -!
https://www.aliexpress.com/item/3301...3da24c4dpkMEvQ

[kt315]

received second frequency meter kit. my mod on schematic.