Stalker XX also know as the Teaberry Stalker 20
Do not miss this:

An excellent classic 70' and 80' allmode USA style CB radio

Picture of Stalker XX insides

Stalker XX - Teaberry Stalker 20
TTeaberry was a big name in the 70's (remember the Teaberry Stalker 202?), and the Stalker XX was one of the last "BIG" rigs to hit the market in the late 70's. It had a lot of great features, but like many rigs of the later years - not easy to modify. While it's nice to have a "stock" rig, it's also nice to have options. [NOTE: the PLL chip can be replaced by the 8719 PLL chip, but these are getting harder to find. If your radio has a MB8734 pll change it to a MB8719.

As you can see by the picture, this rig is stylish, and it's looks are rather distinctive, as most Teaberry's were. You might think it was an easy rig to modify, but not so...(the Stalker XX Domestic version uses the 8734 PLL which has pin 1 disabled internally, while the Stalker XX export model had the easy-2-mod 8719 chip). I found the Stalker XX very easy to use, and it's wood grain front and top case, along with the chrome trim were made some of my older rigs in the shack jealous. The microphone uses the familiar 5 pin connector, and I received some nice audio reports from just the hand microphone.

Type: Citizen band transceiver
Build around +/- 1979
Analog S-meter and SWR/Powermeter
2 x 40 channels AM-FM/SSB.
FM/AM 4watt, SSB 12 Watt
Squelch
RF-Gain
CB/PA/ANLB
AM/(FM)/LSB/USB
Digital alarm clock
Tone
SO-239 connector
Speaker out
Dynamic microphone
Frequency control: PLL8719
Power supply: Mains or 13.8v battery

Photo of inside Stalker 20

Do not miss this for your CB Radio!!!


Extra channels mod

More photo's and pictures of the Teaberry Stalker 20
£

Extra spectral purity by adding a PII-filter modification
Solder a coil between the antenna output and the connector of 7 turns silver 1.2mm wire, 0.5 spacing, 12mm diameter, 68pF soldered parallel at the connector.

! ! ! CB RADIO MODIFICATION and INFORMATION FOR CB RADIO ! ! !
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MB8719/MB8734 PLL
Models Include:- AM In-dash Models:Cobra 46/47XLR, 50/55XLR.
Single Conversion AM/SSB US models:Cobra 140/142GTL, Courier Galaxy, Midland 79-900, President P400/Mckinley/Washington(new), Realistic TRC450/TRC490, Robyn SB505D/SBE LCBS-8/LCMS-8, Teaberry Stalker IX/XV/XX, Tram D80/D300, Uniden Washington.
Dual Conversion AM/SSB US/Australian Models:Cobra 148/2000GTL, Pearce-Simpson Super Bengal MkII, President Grant(new)/Madison(new), Uniden Grant/Madison.
Multimode AM/FM/SSB Export Models:Cobra 148GTL-DX(early,PC879), President Grant(export,PC899), President McKinley(export), Stalker 9-FDX(PC893), Stalker XX Export

The MB8719 is used in the popular Uniden chassis.In the Export versions it has a pair of MC14008 binary Adders connected to it, this enables more Ncodes per mixing crystal.

Modification can be done by changing the loop mixing crystal or controlling pin 10 on the MB8719.If the MB8734 PLL is fitted, replace it with the MB8719 then pin 10 can be controlled.

Download full datasheet for the MB8719/8734 PLL PDF here

RCI (Ranger) Now Makes a clone of this chip called the RCI8719

*1=locked, 0=unlocked
**1=64 + N for use with the 11.125 MHz crystal, 0=128 + N for use with 11.3258 MHz crystal.  This function not present in MB8734. US Models Only.

Pin 10 preset function normally pulls up HIGH.  6-bit binary inputs.  Pull-up resistors used.

Used in the most popular Uniden chassis ever made.  Still in current use worldwide, where it's been adopted to provide 80 or 120 channels and FM.  All chassis very similar and FM/Loop Crystal PC boards often wired separately in the foreign models, or a pair of MC14008 binary
adders is used to preset the chip's N-codes, extending its range to cover 120 channels with one loop crystal. Easiest modification is by control of pin 10, or by adding new loop crystals. If MB8734 is used, it must be replaced by MB8719 first.
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