7701/8701 replacement: meet TOLB

Other Computers and Game Systems

Moderator: Moderators

User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

7701/8701 replacement: meet TOLB

Post by eslapion »

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$US or 9.20 Euros per unit. Shipping cost is the same as with PLAnkton; shipping a small packet (up to 12 units) to the US is 8$. Shipping cost for Europe is 8 Euros, Australia and South America is 10$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 Fri Jan 18, 2019 11:44 pm, edited 7 times in total.
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

Product preview:
PCB Tolb.png
Be normal.
CanadaPhil
Vic 20 Drifter
Posts: 39
Joined: Sat Jun 13, 2015 9:29 am

Re: 8701 replacement: meet TOLB

Post by CanadaPhil »

Any new for the C128 is very cool!
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

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
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

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.
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

40 NTSC units available for pre-order

10 PAL units available for pre-order
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

3 PAL units left.

----- -----

23 NTSC units left.


New information:
Thoroughly tested on the Commodore 128 by Ray Carlsen
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

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!
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

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!
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

100 units sold!

An interesting video posted by aphexteknol on Youtube: https://www.youtube.com/watch?v=occ8JTayl08
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

Pricing adjusted for the current US$ vs Euros exchange rate. 10% discount now applies to both PLAnkton and GandALF.
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 8701 replacement: meet TOLB

Post by eslapion »

120 units sold!
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

7701/8701 replacement: meet TOLB

Post by eslapion »

150 units sold!
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 7701/8701 replacement: meet TOLB

Post by eslapion »

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.
TOLB NTSC with TDS3014B
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.

Here's a capture of the 2 outputs from a TOLB type PAL.
TOLB PAL with TDS3014B
TOLB PAL with TDS3014B
Last edited by eslapion on Sat Jan 26, 2019 3:23 am, edited 1 time in total.
Be normal.
User avatar
eslapion
ultimate expander
Posts: 5458
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: 7701/8701 replacement: meet TOLB

Post by eslapion »

300 units sold!
Be normal.
Post Reply