7701/8701 replacement: meet TOLB

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eslapion
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7701/8701 replacement: meet TOLB

Postby eslapion » Thu Jan 12, 2017 6:26 am

For a few months now, a replacement for the 8701 clock generator chip used on boards 250425, SX-64, 250466, 250469 and the C128 has been in preparation. Works on the C64 Reloaded too!

A prototype has now been successfully tested. I present to you The Other Little Board (or 8701 upside down...) :wink:

Pricing is 11$US or 9.20 Euros per unit. Shipping cost is the same as with PLAnkton; shipping a small packet (up to 12 units) to the US is 7$. Shipping cost for Europe is 8 Euros, Australia and South America is 9$US.

The product is strictly shipped with antistatic protective packaging. It is covered by a 90 days money back guarantee and a 3 year replacement guarantee afterwards.

NTSC and PAL versions with appropriate frequency signals are available. Both versions cost the same price.

Main features:

    - Gold plated pins
    - 3 year guarantee
    - Onboard oscillator makes it independent from the C64 crystal and easy to convert a C64 from PAL to NTSC and inversely
    - Consumes only 9mA of power (a genuine MOS 8701 consumes 25-30mA)


AVAILABLE NOW for both PAL and NTSC C64 and C128 computers!!

Please indicate your interest in this thread.

Feel free to ask all technical questions you may have.

Thoroughly tested on the Commodore 128 by Ray Carlsen
Last edited by eslapion on Tue Oct 31, 2017 7:41 pm, edited 6 times in total.
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eslapion
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Posts: 4334
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Re: 8701 replacement: meet TOLB

Postby eslapion » Mon Jan 16, 2017 10:58 pm

Product preview:
PCB Tolb.png
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CanadaPhil
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Re: 8701 replacement: meet TOLB

Postby CanadaPhil » Wed Jan 25, 2017 6:32 pm

Any new for the C128 is very cool!

eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Wed Feb 08, 2017 4:31 pm

102_0733.JPG


The very first unit is off the assembly line, tested and working.

TOLB for NTSC C64 is available for order immediately.

Introductory pricing is 11$US or 10 Euros
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Fri Feb 10, 2017 9:14 am

About 24 hours after announcing the product, all 11 units available are sold out!

I am ordering a large batch of boards and components. PAL units will soon be available too.
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Fri Feb 17, 2017 6:36 am

40 NTSC units available for pre-order

10 PAL units available for pre-order
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Mon Mar 06, 2017 8:40 pm

3 PAL units left.

----- -----

23 NTSC units left.


New information:
Thoroughly tested on the Commodore 128 by Ray Carlsen
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Thu Mar 16, 2017 10:35 am

Please note all components for both PAL and NTSC versions of TOLB have arrived and all pre-orders will begin shipping tomorrow morning.

TOLB for both PAL and NTSC C64 and C128 computers are now available on a continuous basis!
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Wed May 24, 2017 9:59 pm

Special offer!

Buy one or more TOLB and get a 10% discount on up to 5 PLAnkton modules - you also save on shipping when you combine orders.

60 units sold!
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Sat Aug 26, 2017 12:14 pm

100 units sold!

An interesting video posted by aphexteknol on Youtube: https://www.youtube.com/watch?v=occ8JTayl08
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Sun Sep 24, 2017 9:55 am

Pricing adjusted for the current US$ vs Euros exchange rate. 10% discount now applies to both PLAnkton and GandALF.
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eslapion
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Re: 8701 replacement: meet TOLB

Postby eslapion » Tue Oct 31, 2017 7:38 pm

120 units sold!
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eslapion
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7701/8701 replacement: meet TOLB

Postby eslapion » Wed Nov 08, 2017 7:12 am

150 units sold!
No one can do everything. Everyone can do something.

eslapion
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Re: 7701/8701 replacement: meet TOLB

Postby eslapion » Mon Dec 04, 2017 12:58 am

Since I have a new oscilloscope, I wanted to give it a try on something that requires a double condition trigger.

Here's a capture of the 2 outputs from a TOLB type NTSC.

TOLBNTSC.jpg
TOLB NTSC with TDS3014B

The ringing on channel 1 is because I didn't use the proximity ground pickup. In reality, both wave are very sharp square waves. The scope and probes are all 100MHz with the scope being 1.25GS/s.
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