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Geeboon TC20A (now TC22) 240W - TC20B 380W - JBC clone

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thm_w:
There is some existing discussion here but the thread title was generic so will start a new thread: https://www.eevblog.com/forum/reviews/good-quality-chineese-soldering-station/msg5014180/#msg5014180



All units support C245, C210, C115, T12.
All units have ground and sleep stand 4mm connection on the back.
Tons of settings: sleep, power limit, PID values, frequency of PWM for C115, calibration, etc.
There is a dynamic temperature compensation option, for heavy load. Unsure if JBC themselves do this, they might.

Geeboon TC20A $70:
- 240W peak claimed (says 190W continuous PSU in the description)
- Uses 5 pin GX12 circular connector
- Tip voltage less than 2mV and <2 ohm claimed

Geeboon TC22 $74:
- Upgraded version of above
- 6 pin JBC style circular connector

TC20B $120:
- 380W peak claimed
- Uses 5 pin GX12 circular connector (can it handle the 380W?)
- Also supports C470

TA305 $120:
- 150W peak - 85W continuous (?)
- Transformer based power supply (so 110V or 220V specific)
- Uses 6 pin JBC style circular connector
- guess this station is to please the toroidal fanboys.

Switch box is available: https://www.aliexpress.us/item/3256807424641457.html $20 + ship


Tips look reasonable, all around 2.6-2.7 ohm:


Handles look OK, seems better quality than Aixun, grip is softer. Ignore the tip I didn't insert all of the way:


Measured ~210W peak for C245 and 70W peak for C210 for mains draw on power on. Less under normal use of course.
GX12 connector is earthed, which is connected to the case, but due to anodizing it doesn't fully connect everywhere. Not a huge deal IMO as there appears to be good PSU separation.

Overall, seems good for the price.


Pinout - T210 handle - GX12
1 - NC
2,5 - Heater+ (red)
3,4 - Heater- (blue, green) shorted internally

marck120:

--- Quote from: thm_w on September 23, 2024, 10:16:57 pm ---
All units support C245, C210, C115, T12.
All units have ground and sleep stand 4mm connection on the back.

- 240W peak claimed (says 190W continuous PSU in the description)
- Uses 5 pin GX12 circular connector
- Tip voltage less than 2mV and <2 ohm claimed


--- End quote ---

Hi, sorry for a question, is the GEEBOON TC20A compatible with the original JBC handles ? The other day you explained to me that from the photos of the GX12 connector you can understand if the soldering station is compatible with the original JBC handles, how can you understand ?

thm_w:
Its clearly explained above:
- TC20A/TC20B = GX12 = not compatible, metal circular connector
- TA305 = compatible JBC connector

Just look at the photo, if its black round plastic plug with 6 or 7 pins its JBC compatible. Worst case someone had to drill out the empty space to get their JBC handle to work.

edit: updated

marck120:

--- Quote from: thm_w on October 08, 2024, 08:47:44 pm ---Its clearly explained above:
- TC20A/TC20B/TC22 = GX12 = not compatible, metal circular connector
- TA305 = compatible JBC connector

Just look at the photo, if its black round plastic plug with 6 or 7 pins its JBC compatible. Worst case someone had to drill out the empty space to get their JBC handle to work.

--- End quote ---

Thanks for the explanations.

Apart from the shape of the connector I thought that the compatibility depended on the order in which the pins were connected, I thought it was a question of internal connections, in some stations I saw that they change the order of the cables on the handle to make it compatible. Thanks again.

Sarych:

--- Quote from: thm_w on October 08, 2024, 08:47:44 pm ---Its clearly explained above:
- TC20A/TC20B/TC22 = GX12 = not compatible, metal circular connector
- TA305 = compatible JBC connector


--- End quote ---

TC 22 has the same connector as TA305

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