2 layers144.1 × 108.6 mm Printer, the printed circuit board in 3D

Printer

The Telcon Ambassador was a series of portable terminals by Telcon Industries (who later created the Zorba portable computer).

Open in PCBKit

Size: 144.1 × 108.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 63
Nets: 118
Pads: 355
Tracks, vias: 914, 34
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 7 Sep 2022
Updated: 27 Sep 2024

Overview

Printer is an open-source printed circuit board by btb, from the btb/Telcon-Ambassador repository on GitHub. It is a 2-layer board of 144.1 × 108.6 mm with 63 parts on 118 nets, routed with 914 tracks and 34 vias.

Its parts include 31 resistors, 12 transistors, 6 capacitors, 4 ICs and 2 diodes.

README

README.md

Telcon Ambassador Portable Terminals

The Telcon Ambassador was a series of portable terminals by Telcon Industries (who later created the Zorba portable computer).

The info here is primarily derived from my reverse-engineering of a Telcon Ambassador IV which I acquired in very rough shape.

Parts

Qty	Value	Footprint	References
10	10K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R1, R2, R3, R4, R5, R6, R7, R8, R9, R20
10	2N3906	Package_TO_SOT_THT:TO-92_Inline_Wide	Q2, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12
7	1k	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R23, R24, R25, R26, R27, R28, R29
2	10K	Resistor_THT:R_Array_SIP10	RN1, RN2
2	1N4148	Diode_THT:D_DO-35_SOD27_P12.70mm_Horizontal	D1, D2
2	220NF	Capacitor_THT:C_Rect_L7.0mm_W2.0mm_P5.00mm	C3, C4
2	2N3904	Package_TO_SOT_THT:TO-92_Inline_Wide	Q1, Q3
2	3.9K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R13, R14
2	5.6K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R21, R22
2	Q2T3725	Package_DIP:DIP-14_W7.62mm	QN1, QN2
1	100	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R31
1	10UF	Capacitor_THT:CP_Radial_Tantal_D5.0mm_P5.00mm	C2
1	150	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R30
1	16uF	Capacitor_THT:CP_Radial_Tantal_D5.0mm_P5.00mm	C5
1	180K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R16
1	1K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R19
1	2.2K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R10
1	2.7K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R15
1	2.7K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P5.08mm_Vertical	R17
1	2.7K	Resistor_THT:R_Array_SIP10	RN3
1	220K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R18
1	220uF	Capacitor_THT:CP_Radial_D8.0mm_P5.00mm	C6
1	220uF	Capacitor_THT:CP_Axial_L34.5mm_D20.0mm_P41.00mm_Horizontal	C1
1	2758	Package_DIP:DIP-24_W15.24mm	U2
1	27K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R11
1	47K	Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R12
1	6821	Package_DIP:DIP-40_W15.24mm	U4
1	7400	Package_DIP:DIP-14_W7.62mm	U3
1	Crystal_GND3	Crystal:Crystal_HC18-U_Horizontal_1EP_style2	Y1
1	GC-880	ambassador:CARDEDGE_2x15_P3.96mm	J1
1	MC6802	Package_DIP:DIP-40_W15.24mm	U1
1	PRINTER	ambassador:CardSocket_1x15_P3.96mm_Vertical	J2

Questions

How big is the Printer PCB?

It measures 144.1 × 108.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Printer use?

63 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Printer KiCad files?

From the btb/Telcon-Ambassador repository on GitHub, at the commit this page was made from: the board is boards/printer/printer.kicad_pcb and its schematic boards/keyboard/key_matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Printer design in my own project?

Its repository states no licence, so its author keeps all rights: ask btb before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/btb-telcon-ambassador-printer" title="Printer in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/btb-telcon-ambassador-printer.jpg" alt="Printer" width="1200" height="900">

A picture that opens the board, for a README

[![Printer](https://pcbkit.io/embed/boards/btb-telcon-ambassador-printer.jpg?size=s)](https://pcbkit.io/boards/btb-telcon-ambassador-printer)

Source

Repository: btb/Telcon-Ambassador
Board file: boards/printer/printer.kicad_pcb
Commit: 68f95f7
Licence: Not stated

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