Añadir a mis favoritos Sinclair ZX Spectrum Pentagon 128 AY-3-8910 & SRAM 512kb PCB

Categoría:
Computadoras Retras >> Sinclair >> Sinclair ZX Spectrum >> Hardware >> General / Add-Ons
Tipo de anuncio:
Precio Fijo Cantidad Multiple
Item Condition:
New
Ubicación del vendedor:
Khabarovsk, Khabarovskiy kray, Russian Federation
Tiempo restante:
25 días, 04h:32m:30s
Cantidad disponible:
5
Precio fijo:
US$50.00 ¡Cómpralo ya!
Gastos de envío:
From only US$12.00
Formas de pago:
Pay Pal
Cantidad vendida:
0 (Ver historial)

WARNING: Due to the impact of coronavirus, delivery times across the World are severely impacted, with some countries refusing to accept postage completely.

Item Number : 39951

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Precio fijo: US$50.00
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Descripción

1.
ZX Spectrum Pentagon 128Kb AY - Modified Board of a popular retrocomputer Zx Spectrum Pentagon 128. There is a place to install a molex connector to power the computer from a modern power supply unit from a PC.
Onboard there is a built-in music processor, as well as 2 connectors for a modern drive and a molex power connector. There is also a place to install a molex connector to power the computer from a modern power supply unit from a PC
The diameter of vias is reduced to 0.4 mm and hidden under the mask
Integrated AY-3-8910.
Integrated port Kempston.
Added block capacitors in SMD version on the back of the board.
The printer's ROM has been converted to a test one, with the main ROM being switched by a jumper that is located near the drive connector.
Rewriting resistive assembly on the processor data bus with a + 5V pin on the edge, not on the center.
Added screen for quartz 8 MHz.
Improved power bus.
Added mounting holes.
Unconnected inputs of microcircuits are pulled up to + 5V.
PCB covered with blue solder mask and silk-screen printing
Added mounting field to install molex type connector for floppy disk power supply
Added pins for installing SMD tantalum capacitors on the power bus
Added pins for installing SMD components instead of pinouts
etc

2.

512 KB SRAM for Pentagon 128 (expandable memory)

SRAM 512 module board for memory expansion of ZX Spectrum Pentagon 128 up to 512kb. One BS62LV4006 static memory chip is used instead of 16 RU5. The module is installed in the memory slots of your computer. Only the board is sold. There are 2 errors on the board - 2 contacts are covered with a mask, the mask must be removed and the holes drilled with a 0.8mm drill

Galería de imágenes

  • Sinclair ZX Spectrum Pentagon 128 AY-3-8910 & SRAM 512kb PCB

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Envío y Pago

Item Location:
Khabarovsk, Khabarovskiy kray, Russian Federation
Condiciones de envío:
Gastos de envío a cargo del comprador
Gastos de envío:
  • Para Russian Federation :
  • Second Class Signed For : US$12.00 Por artículo inicial, US$9.00 Por artículos adicionales
  • Para EU :
  • Courier : US$34.90 Por artículo inicial, US$9.00 Por artículos adicionales
  • Para Europe (Non EU) :
  • Courier : US$34.90 Por artículo inicial, US$9.00 Por artículos adicionales
  • Para Americas (Non USA) :
  • Courier : US$34.90 Por artículo inicial, US$9.00 Por artículos adicionales
  • Para Resto del Mundo :
  • Courier : US$34.90 Por artículo inicial, US$9.00 Por artículos adicionales
  • Para USA :
  • Courier : US$34.90 Por artículo inicial, US$9.00 Por artículos adicionales
Condiciones de envío:
No especificado
Formas de pago:
Pay Pal

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